76739087 divided by 638 
We want to figure out the number of times 76739087 can be divided by 638.

Advancing to step 1:
7 divided by 638 is 0 with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Grab the next digit (6) from the dividend, add it to 7, then carry on: 76 / 638

Moving on to step 2:
If we divide 76 by 638, we get 0 and a remainder of 76.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 76, we end up with 76.
Append the next digit (7) from the dividend to 76 and continue with: 767 / 638

Moving on to step 3:
If we divide 767 by 638, we get 1 and a remainder of 129.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 129 after subtracting 638 from 767.
Include the next digit (3) from the dividend after 129, then repeat: 1293 / 638

Advancing to step 4:
The number 638 fits into 1293 2 times, leaving a remainder of 17.
The next digit of our result is 2. 
Result so far: 12.0
Subtracting 1276 from 1293 leaves us with 17.
Bring next digit (9) of the dividend behind the 17 and repeat the process: 179 / 638

Let's proceed to step 5:
638 can be fit into 179 0 times, resulting in a remainder of 179.
Use 0 as the next digit of our solution. 
Result so far: 120.0
Deduct 0 from 179 and we're left with 179.
Append the next digit (0) from the dividend to 179 and continue with: 1790 / 638

On to step 6:
When dividing 1790 by 638, we get 2 with a remainder of 514.
Use 2 as the next digit of our solution. 
Result so far: 1202.0
The remainder is 514 after subtracting 1276 from 1790.
Grab the next digit (8) from the dividend, add it to 514, then carry on: 5148 / 638

Moving on to step 7:
5148 divided by 638 is 8 with a remainder of 44.
The next digit of our result is 8. 
Result so far: 12028.0
If we take 5104 away from 5148, we end up with 44.
Fetch the next digit (7) from the dividend, attach it to 44 and continue: 447 / 638

On to step 8:
If we divide 447 by 638, we get 0 and a remainder of 447.
The next digit of our result is 0. 
Result so far: 120280.0
If we take 0 away from 447, we end up with 447.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4470, and continue the process.

Moving on to step 9:
When dividing 4470 by 638, we get 7 with a remainder of 4.
The number 7 becomes the next digit in our result. 
Result so far: 120280.7
If we subtract 4466 from 4470, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 10:
40 divided by 638 is 0 with a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 120280.7
If we subtract 0 from 40, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 11:
The number 638 fits into 400 0 times, leaving a remainder of 400.
The next digit of our result is 0. 
Result so far: 120280.7
The remainder is 400 after subtracting 0 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

The final result is 120280.7 with a remainder of 0.04.