Let's divide 77438887 by 637
We're looking to find how many times 637 goes into 77438887.

Moving on to step 1:
The number 637 fits into 7 0 times, leaving a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Take the next digit (7) from the dividend and append it to 7, then repeat: 77 / 637

Let's proceed to step 2:
637 can be fit into 77 0 times, resulting in a remainder of 77.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 77 and we're left with 77.
Grab the next digit (4) from the dividend, add it to 77, then carry on: 774 / 637

Advancing to step 3:
The number 637 fits into 774 1 times, leaving a remainder of 137.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 637 from 774 and we're left with 137.
Take the next digit (3) from the dividend and append it to 137, then repeat: 1373 / 637

On to step 4:
When dividing 1373 by 637, we get 2 with a remainder of 99.
Write down 2 as next digit of the result. 
Result so far: 12.0
If we subtract 1274 from 1373, we get 99.
Bring next digit (8) of the dividend behind the 99 and repeat the process: 998 / 637

Let's proceed to step 5:
If we divide 998 by 637, we get 1 and a remainder of 361.
Record the quotient 1 as the next digit in the result. 
Result so far: 121.0
If we take 637 away from 998, we end up with 361.
Include the next digit (8) from the dividend after 361, then repeat: 3618 / 637

Going ahead to step 6:
637 goes into 3618 5 times with a remainder of 433.
Write down 5 as next digit of the result. 
Result so far: 1215.0
Subtracting 3185 from 3618 leaves us with 433.
Take the next digit (8) from the dividend and append it to 433, then repeat: 4338 / 637

Advancing to step 7:
4338 divided by 637 is 6 with a remainder of 516.
Record the quotient 6 as the next digit in the result. 
Result so far: 12156.0
If we subtract 3822 from 4338, we get 516.
Grab the next digit (7) from the dividend, add it to 516, then carry on: 5167 / 637

Advancing to step 8:
The number 637 fits into 5167 8 times, leaving a remainder of 71.
Write down 8 as next digit of the result. 
Result so far: 121568.0
The remainder is 71 after subtracting 5096 from 5167.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

Step 9:
The number 637 fits into 710 1 times, leaving a remainder of 73.
Put 1 as the next digit of the answer. 
Result so far: 121568.1
The remainder is 73 after subtracting 637 from 710.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

On to step 10:
637 can be fit into 730 1 times, resulting in a remainder of 93.
Use 1 as the next digit of our solution. 
Result so far: 121568.11
Deduct 637 from 730 and we're left with 93.
Since there are no more digits in the dividend, we add a zero to the remainder making it 930, and continue the process.

The final result is 121568.11 with a remainder of 0.093.