We look at the division of 74815091 by 638 
Let's see how many times 638 fits into 74815091.

On 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
Subtract 0 from 7 to get 7.
Grab the next digit (4) from the dividend, add it to 7, then carry on: 74 / 638

Step 2:
638 can be fit into 74 0 times, resulting in a remainder of 74.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 74 after subtracting 0 from 74.
Append the next digit (8) from the dividend to 74 and continue with: 748 / 638

Step 3:
638 can be fit into 748 1 times, resulting in a remainder of 110.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we subtract 638 from 748, we get 110.
Take the next digit (1) from the dividend and append it to 110, then repeat: 1101 / 638

On to step 4:
When dividing 1101 by 638, we get 1 with a remainder of 463.
Write down 1 as next digit of the result. 
Result so far: 11.0
If we take 638 away from 1101, we end up with 463.
Include the next digit (5) from the dividend after 463, then repeat: 4635 / 638

Advancing to step 5:
638 goes into 4635 7 times with a remainder of 169.
Write down 7 as next digit of the result. 
Result so far: 117.0
Subtracting 4466 from 4635 leaves us with 169.
Include the next digit (0) from the dividend after 169, then repeat: 1690 / 638

On to step 6:
If we divide 1690 by 638, we get 2 and a remainder of 414.
The number 2 becomes the next digit in our result. 
Result so far: 1172.0
If we subtract 1276 from 1690, we get 414.
Fetch the next digit (9) from the dividend, attach it to 414 and continue: 4149 / 638

Step 7:
638 goes into 4149 6 times with a remainder of 321.
The next digit of our result is 6. 
Result so far: 11726.0
Subtract 3828 from 4149 to get 321.
Bring next digit (1) of the dividend behind the 321 and repeat the process: 3211 / 638

Step 8:
When dividing 3211 by 638, we get 5 with a remainder of 21.
Write down 5 as next digit of the result. 
Result so far: 117265.0
The remainder is 21 after subtracting 3190 from 3211.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Step 9:
When dividing 210 by 638, we get 0 with a remainder of 210.
Use 0 as the next digit of our solution. 
Result so far: 117265.0
If we subtract 0 from 210, we get 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

Moving on to step 10:
The number 638 fits into 2100 3 times, leaving a remainder of 186.
Put 3 as the next digit of the answer. 
Result so far: 117265.03
The remainder is 186 after subtracting 1914 from 2100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1860, and continue the process.

On to step 11:
When dividing 1860 by 638, we get 2 with a remainder of 584.
Record the quotient 2 as the next digit in the result. 
Result so far: 117265.032
Deduct 1276 from 1860 and we're left with 584.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5840, and continue the process.

Advancing to step 12:
5840 divided by 638 is 9 with a remainder of 98.
Put 9 as the next digit of the answer. 
Result so far: 117265.0329
Subtracting 5742 from 5840 leaves us with 98.
Since there are no more digits in the dividend, we add a zero to the remainder making it 980, and continue the process.

On to step 13:
638 goes into 980 1 times with a remainder of 342.
The next digit of our result is 1. 
Result so far: 117265.03291
If we take 638 away from 980, we end up with 342.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3420, and continue the process.

On to step 14:
638 can be fit into 3420 5 times, resulting in a remainder of 230.
Write down 5 as next digit of the result. 
Result so far: 117265.032915
Subtracting 3190 from 3420 leaves us with 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

Advancing to step 15:
If we divide 2300 by 638, we get 3 and a remainder of 386.
Put 3 as the next digit of the answer. 
Result so far: 117265.0329153
Subtracting 1914 from 2300 leaves us with 386.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3860, and continue the process.

Moving on to step 16:
If we divide 3860 by 638, we get 6 and a remainder of 32.
Write down 6 as next digit of the result. 
Result so far: 117265.03291536
The remainder is 32 after subtracting 3828 from 3860.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

The final outcome is 117265.03291536, with a leftover of 3.2e-08.