We're dividing 63899180 by 100 
Let's see how many times 100 fits into 63899180.

On to step 1:
100 can be fit into 6 0 times, resulting in a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Bring next digit (3) of the dividend behind the 6 and repeat the process: 63 / 100

Step 2:
63 divided by 100 is 0 with a remainder of 63.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 63 after subtracting 0 from 63.
Bring next digit (8) of the dividend behind the 63 and repeat the process: 638 / 100

Moving on to step 3:
When dividing 638 by 100, we get 6 with a remainder of 38.
Use 6 as the next digit of our solution. 
Result so far: 6.0
Subtract 600 from 638 to get 38.
Grab the next digit (9) from the dividend, add it to 38, then carry on: 389 / 100

Step 4:
When dividing 389 by 100, we get 3 with a remainder of 89.
The number 3 becomes the next digit in our result. 
Result so far: 63.0
If we subtract 300 from 389, we get 89.
Fetch the next digit (9) from the dividend, attach it to 89 and continue: 899 / 100

Let's proceed to step 5:
The number 100 fits into 899 8 times, leaving a remainder of 99.
Write down 8 as next digit of the result. 
Result so far: 638.0
If we subtract 800 from 899, we get 99.
Include the next digit (1) from the dividend after 99, then repeat: 991 / 100

Step 6:
991 divided by 100 is 9 with a remainder of 91.
Use 9 as the next digit of our solution. 
Result so far: 6389.0
If we take 900 away from 991, we end up with 91.
Include the next digit (8) from the dividend after 91, then repeat: 918 / 100

On to step 7:
The number 100 fits into 918 9 times, leaving a remainder of 18.
The next digit of our result is 9. 
Result so far: 63899.0
Subtract 900 from 918 to get 18.
Bring next digit (0) of the dividend behind the 18 and repeat the process: 180 / 100

Let's proceed to step 8:
100 goes into 180 1 times with a remainder of 80.
Write down 1 as next digit of the result. 
Result so far: 638991.0
The remainder is 80 after subtracting 100 from 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Advancing to step 9:
If we divide 800 by 100, we get 8 and a remainder of 0.
The next digit of our result is 8. 
Result so far: 638991.8
Deduct 800 from 800 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 10:
0 divided by 100 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 638991.8
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 11:
If we divide 0 by 100, we get 0 and a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 638991.8
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final result is 638991.8 with a remainder of 0.0.