75639371 ÷ 728 
We're looking to find how many times 728 goes into 75639371.

On to step 1:
The number 728 fits into 7 0 times, leaving a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Bring next digit (5) of the dividend behind the 7 and repeat the process: 75 / 728

Let's proceed to step 2:
75 divided by 728 is 0 with a remainder of 75.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 75 and we're left with 75.
Fetch the next digit (6) from the dividend, attach it to 75 and continue: 756 / 728

Going ahead to step 3:
728 goes into 756 1 times with a remainder of 28.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 728 from 756 to get 28.
Take the next digit (3) from the dividend and append it to 28, then repeat: 283 / 728

Going ahead to step 4:
728 goes into 283 0 times with a remainder of 283.
Write down 0 as next digit of the result. 
Result so far: 10.0
If we subtract 0 from 283, we get 283.
Append the next digit (9) from the dividend to 283 and continue with: 2839 / 728

Moving on to step 5:
728 goes into 2839 3 times with a remainder of 655.
Use 3 as the next digit of our solution. 
Result so far: 103.0
Deduct 2184 from 2839 and we're left with 655.
Fetch the next digit (3) from the dividend, attach it to 655 and continue: 6553 / 728

Step 6:
If we divide 6553 by 728, we get 9 and a remainder of 1.
The number 9 becomes the next digit in our result. 
Result so far: 1039.0
The remainder is 1 after subtracting 6552 from 6553.
Include the next digit (7) from the dividend after 1, then repeat: 17 / 728

Step 7:
The number 728 fits into 17 0 times, leaving a remainder of 17.
The number 0 becomes the next digit in our result. 
Result so far: 10390.0
If we take 0 away from 17, we end up with 17.
Grab the next digit (1) from the dividend, add it to 17, then carry on: 171 / 728

Going ahead to step 8:
If we divide 171 by 728, we get 0 and a remainder of 171.
Use 0 as the next digit of our solution. 
Result so far: 103900.0
If we take 0 away from 171, we end up with 171.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1710, and continue the process.

Advancing to step 9:
1710 divided by 728 is 2 with a remainder of 254.
Write down 2 as next digit of the result. 
Result so far: 103900.2
Subtract 1456 from 1710 to get 254.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2540, and continue the process.

On to step 10:
2540 divided by 728 is 3 with a remainder of 356.
Write down 3 as next digit of the result. 
Result so far: 103900.23
If we take 2184 away from 2540, we end up with 356.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3560, and continue the process.

Step 11:
728 can be fit into 3560 4 times, resulting in a remainder of 648.
Record the quotient 4 as the next digit in the result. 
Result so far: 103900.234
Subtracting 2912 from 3560 leaves us with 648.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6480, and continue the process.

Moving on to step 12:
728 can be fit into 6480 8 times, resulting in a remainder of 656.
The next digit of our result is 8. 
Result so far: 103900.2348
Deduct 5824 from 6480 and we're left with 656.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6560, and continue the process.

On to step 13:
If we divide 6560 by 728, we get 9 and a remainder of 8.
Use 9 as the next digit of our solution. 
Result so far: 103900.23489
Subtracting 6552 from 6560 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 14:
728 can be fit into 80 0 times, resulting in a remainder of 80.
Use 0 as the next digit of our solution. 
Result so far: 103900.23489
Subtract 0 from 80 to get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Step 15:
The number 728 fits into 800 1 times, leaving a remainder of 72.
The number 1 becomes the next digit in our result. 
Result so far: 103900.2348901
Subtract 728 from 800 to get 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Advancing to step 16:
720 divided by 728 is 0 with a remainder of 720.
The number 0 becomes the next digit in our result. 
Result so far: 103900.2348901
Deduct 0 from 720 and we're left with 720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7200, and continue the process.

The final outcome is 103900.2348901, with a leftover of 7.2e-07.