638880 divided by 63 
Our goal is to divide 638880 by 63.

Going ahead to step 1:
6 divided by 63 is 0 with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Fetch the next digit (3) from the dividend, attach it to 6 and continue: 63 / 63

Moving on to step 2:
63 divided by 63 is 1 with a remainder of 0.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 63 from 63, we get 0.
Append the next digit (8) from the dividend to 0 and continue with: 8 / 63

On to step 3:
If we divide 8 by 63, we get 0 and a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 10.0
Subtract 0 from 8 to get 8.
Grab the next digit (8) from the dividend, add it to 8, then carry on: 88 / 63

Step 4:
The number 63 fits into 88 1 times, leaving a remainder of 25.
Use 1 as the next digit of our solution. 
Result so far: 101.0
The remainder is 25 after subtracting 63 from 88.
Grab the next digit (8) from the dividend, add it to 25, then carry on: 258 / 63

Moving on to step 5:
63 can be fit into 258 4 times, resulting in a remainder of 6.
The next digit of our result is 4. 
Result so far: 1014.0
Subtracting 252 from 258 leaves us with 6.
Fetch the next digit (0) from the dividend, attach it to 6 and continue: 60 / 63

Going ahead to step 6:
The number 63 fits into 60 0 times, leaving a remainder of 60.
Write down 0 as next digit of the result. 
Result so far: 10140.0
Subtract 0 from 60 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 7:
63 can be fit into 600 9 times, resulting in a remainder of 33.
Put 9 as the next digit of the answer. 
Result so far: 10140.9
Subtracting 567 from 600 leaves us with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Moving on to step 8:
If we divide 330 by 63, we get 5 and a remainder of 15.
Put 5 as the next digit of the answer. 
Result so far: 10140.95
If we take 315 away from 330, we end up with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Let's proceed to step 9:
63 goes into 150 2 times with a remainder of 24.
Put 2 as the next digit of the answer. 
Result so far: 10140.952
Deduct 126 from 150 and we're left with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

On to step 10:
When dividing 240 by 63, we get 3 with a remainder of 51.
Use 3 as the next digit of our solution. 
Result so far: 10140.9523
Deduct 189 from 240 and we're left with 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Advancing to step 11:
510 divided by 63 is 8 with a remainder of 6.
The next digit of our result is 8. 
Result so far: 10140.95238
Deduct 504 from 510 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 12:
If we divide 60 by 63, we get 0 and a remainder of 60.
The next digit of our result is 0. 
Result so far: 10140.95238
Deduct 0 from 60 and we're left with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Let's proceed to step 13:
63 goes into 600 9 times with a remainder of 33.
The next digit of our result is 9. 
Result so far: 10140.9523809
Subtract 567 from 600 to get 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Moving on to step 14:
If we divide 330 by 63, we get 5 and a remainder of 15.
Put 5 as the next digit of the answer. 
Result so far: 10140.95238095
If we subtract 315 from 330, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

The final outcome is 10140.95238095, with a leftover of 1.5e-08.