We look at the division of 10179251 by 638 
Let's see how many times 638 fits into 10179251.

Step 1:
638 goes into 1 0 times with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Include the next digit (0) from the dividend after 1, then repeat: 10 / 638

Let's proceed to step 2:
When dividing 10 by 638, we get 0 with a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 10, we end up with 10.
Fetch the next digit (1) from the dividend, attach it to 10 and continue: 101 / 638

Going ahead to step 3:
The number 638 fits into 101 0 times, leaving a remainder of 101.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 101 and we're left with 101.
Grab the next digit (7) from the dividend, add it to 101, then carry on: 1017 / 638

Step 4:
638 goes into 1017 1 times with a remainder of 379.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 638 from 1017, we get 379.
Grab the next digit (9) from the dividend, add it to 379, then carry on: 3799 / 638

Going ahead to step 5:
638 can be fit into 3799 5 times, resulting in a remainder of 609.
Write down 5 as next digit of the result. 
Result so far: 15.0
Subtracting 3190 from 3799 leaves us with 609.
Bring next digit (2) of the dividend behind the 609 and repeat the process: 6092 / 638

Moving on to step 6:
The number 638 fits into 6092 9 times, leaving a remainder of 350.
Write down 9 as next digit of the result. 
Result so far: 159.0
The remainder is 350 after subtracting 5742 from 6092.
Take the next digit (5) from the dividend and append it to 350, then repeat: 3505 / 638

On to step 7:
When dividing 3505 by 638, we get 5 with a remainder of 315.
Put 5 as the next digit of the answer. 
Result so far: 1595.0
If we take 3190 away from 3505, we end up with 315.
Include the next digit (1) from the dividend after 315, then repeat: 3151 / 638

Advancing to step 8:
638 can be fit into 3151 4 times, resulting in a remainder of 599.
The number 4 becomes the next digit in our result. 
Result so far: 15954.0
Subtracting 2552 from 3151 leaves us with 599.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5990, and continue the process.

Advancing to step 9:
If we divide 5990 by 638, we get 9 and a remainder of 248.
Put 9 as the next digit of the answer. 
Result so far: 15954.9
If we take 5742 away from 5990, we end up with 248.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2480, and continue the process.

Advancing to step 10:
If we divide 2480 by 638, we get 3 and a remainder of 566.
Put 3 as the next digit of the answer. 
Result so far: 15954.93
Subtract 1914 from 2480 to get 566.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5660, and continue the process.

On to step 11:
5660 divided by 638 is 8 with a remainder of 556.
Put 8 as the next digit of the answer. 
Result so far: 15954.938
If we subtract 5104 from 5660, we get 556.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5560, and continue the process.

Advancing to step 12:
If we divide 5560 by 638, we get 8 and a remainder of 456.
Write down 8 as next digit of the result. 
Result so far: 15954.9388
Subtract 5104 from 5560 to get 456.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4560, and continue the process.

Our division results in 15954.9388 with a remaining 0.00456.