72903593 ÷ 517 
Our goal is to divide 72903593 by 517.

Step 1:
The number 517 fits into 7 0 times, leaving a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Take the next digit (2) from the dividend and append it to 7, then repeat: 72 / 517

Let's proceed to step 2:
72 divided by 517 is 0 with a remainder of 72.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 72 leaves us with 72.
Grab the next digit (9) from the dividend, add it to 72, then carry on: 729 / 517

Going ahead to step 3:
If we divide 729 by 517, we get 1 and a remainder of 212.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 517 from 729, we get 212.
Append the next digit (0) from the dividend to 212 and continue with: 2120 / 517

Going ahead to step 4:
517 can be fit into 2120 4 times, resulting in a remainder of 52.
The number 4 becomes the next digit in our result. 
Result so far: 14.0
Subtract 2068 from 2120 to get 52.
Fetch the next digit (3) from the dividend, attach it to 52 and continue: 523 / 517

On to step 5:
The number 517 fits into 523 1 times, leaving a remainder of 6.
Write down 1 as next digit of the result. 
Result so far: 141.0
Subtract 517 from 523 to get 6.
Bring next digit (5) of the dividend behind the 6 and repeat the process: 65 / 517

Moving on to step 6:
When dividing 65 by 517, we get 0 with a remainder of 65.
Use 0 as the next digit of our solution. 
Result so far: 1410.0
If we take 0 away from 65, we end up with 65.
Bring next digit (9) of the dividend behind the 65 and repeat the process: 659 / 517

Moving on to step 7:
517 goes into 659 1 times with a remainder of 142.
Use 1 as the next digit of our solution. 
Result so far: 14101.0
Deduct 517 from 659 and we're left with 142.
Take the next digit (3) from the dividend and append it to 142, then repeat: 1423 / 517

Let's proceed to step 8:
When dividing 1423 by 517, we get 2 with a remainder of 389.
The next digit of our result is 2. 
Result so far: 141012.0
Subtract 1034 from 1423 to get 389.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3890, and continue the process.

Step 9:
517 can be fit into 3890 7 times, resulting in a remainder of 271.
Put 7 as the next digit of the answer. 
Result so far: 141012.7
The remainder is 271 after subtracting 3619 from 3890.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2710, and continue the process.

Advancing to step 10:
The number 517 fits into 2710 5 times, leaving a remainder of 125.
Use 5 as the next digit of our solution. 
Result so far: 141012.75
The remainder is 125 after subtracting 2585 from 2710.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

Let's proceed to step 11:
When dividing 1250 by 517, we get 2 with a remainder of 216.
Write down 2 as next digit of the result. 
Result so far: 141012.752
Subtract 1034 from 1250 to get 216.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2160, and continue the process.

Going ahead to step 12:
2160 divided by 517 is 4 with a remainder of 92.
The next digit of our result is 4. 
Result so far: 141012.7524
If we take 2068 away from 2160, we end up with 92.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

Let's proceed to step 13:
920 divided by 517 is 1 with a remainder of 403.
Record the quotient 1 as the next digit in the result. 
Result so far: 141012.75241
Deduct 517 from 920 and we're left with 403.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4030, and continue the process.

Going ahead to step 14:
If we divide 4030 by 517, we get 7 and a remainder of 411.
Put 7 as the next digit of the answer. 
Result so far: 141012.752417
Subtract 3619 from 4030 to get 411.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4110, and continue the process.

Going ahead to step 15:
If we divide 4110 by 517, we get 7 and a remainder of 491.
The number 7 becomes the next digit in our result. 
Result so far: 141012.7524177
Subtracting 3619 from 4110 leaves us with 491.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4910, and continue the process.

The final result is 141012.7524177 with a remainder of 4.91e-06.