85703605 ÷ 603 
Our goal is to divide 85703605 by 603.

Advancing to step 1:
8 divided by 603 is 0 with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Bring next digit (5) of the dividend behind the 8 and repeat the process: 85 / 603

Let's proceed to step 2:
The number 603 fits into 85 0 times, leaving a remainder of 85.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 85 after subtracting 0 from 85.
Append the next digit (7) from the dividend to 85 and continue with: 857 / 603

Going ahead to step 3:
When dividing 857 by 603, we get 1 with a remainder of 254.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 254 after subtracting 603 from 857.
Take the next digit (0) from the dividend and append it to 254, then repeat: 2540 / 603

Let's proceed to step 4:
603 can be fit into 2540 4 times, resulting in a remainder of 128.
Record the quotient 4 as the next digit in the result. 
Result so far: 14.0
Subtract 2412 from 2540 to get 128.
Take the next digit (3) from the dividend and append it to 128, then repeat: 1283 / 603

Let's proceed to step 5:
If we divide 1283 by 603, we get 2 and a remainder of 77.
The next digit of our result is 2. 
Result so far: 142.0
Deduct 1206 from 1283 and we're left with 77.
Include the next digit (6) from the dividend after 77, then repeat: 776 / 603

Step 6:
603 can be fit into 776 1 times, resulting in a remainder of 173.
The number 1 becomes the next digit in our result. 
Result so far: 1421.0
If we subtract 603 from 776, we get 173.
Take the next digit (0) from the dividend and append it to 173, then repeat: 1730 / 603

Going ahead to step 7:
603 goes into 1730 2 times with a remainder of 524.
The number 2 becomes the next digit in our result. 
Result so far: 14212.0
Subtracting 1206 from 1730 leaves us with 524.
Include the next digit (5) from the dividend after 524, then repeat: 5245 / 603

Moving on to step 8:
603 can be fit into 5245 8 times, resulting in a remainder of 421.
The number 8 becomes the next digit in our result. 
Result so far: 142128.0
Subtracting 4824 from 5245 leaves us with 421.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4210, and continue the process.

Let's proceed to step 9:
The number 603 fits into 4210 6 times, leaving a remainder of 592.
Record the quotient 6 as the next digit in the result. 
Result so far: 142128.6
Subtract 3618 from 4210 to get 592.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5920, and continue the process.

Going ahead to step 10:
5920 divided by 603 is 9 with a remainder of 493.
Put 9 as the next digit of the answer. 
Result so far: 142128.69
Subtract 5427 from 5920 to get 493.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4930, and continue the process.

Moving on to step 11:
603 can be fit into 4930 8 times, resulting in a remainder of 106.
Record the quotient 8 as the next digit in the result. 
Result so far: 142128.698
The remainder is 106 after subtracting 4824 from 4930.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1060, and continue the process.

On to step 12:
603 goes into 1060 1 times with a remainder of 457.
Use 1 as the next digit of our solution. 
Result so far: 142128.6981
The remainder is 457 after subtracting 603 from 1060.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4570, and continue the process.

Let's proceed to step 13:
603 can be fit into 4570 7 times, resulting in a remainder of 349.
Record the quotient 7 as the next digit in the result. 
Result so far: 142128.69817
If we take 4221 away from 4570, we end up with 349.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3490, and continue the process.

Let's proceed to step 14:
3490 divided by 603 is 5 with a remainder of 475.
Record the quotient 5 as the next digit in the result. 
Result so far: 142128.698175
Subtract 3015 from 3490 to get 475.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4750, and continue the process.

Step 15:
4750 divided by 603 is 7 with a remainder of 529.
Record the quotient 7 as the next digit in the result. 
Result so far: 142128.6981757
Subtracting 4221 from 4750 leaves us with 529.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5290, and continue the process.

Going ahead to step 16:
The number 603 fits into 5290 8 times, leaving a remainder of 466.
Use 8 as the next digit of our solution. 
Result so far: 142128.69817578
If we subtract 4824 from 5290, we get 466.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4660, and continue the process.

The final result is 142128.69817578 with a remainder of 4.66e-07.