We look at the division of 638812 by 20 
We're looking to find how many times 20 goes into 638812.

Moving on to step 1:
20 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
Subtracting 0 from 6 leaves us with 6.
Grab the next digit (3) from the dividend, add it to 6, then carry on: 63 / 20

Moving on to step 2:
The number 20 fits into 63 3 times, leaving a remainder of 3.
The next digit of our result is 3. 
Result so far: 3.0
Deduct 60 from 63 and we're left with 3.
Bring next digit (8) of the dividend behind the 3 and repeat the process: 38 / 20

On to step 3:
When dividing 38 by 20, we get 1 with a remainder of 18.
Write down 1 as next digit of the result. 
Result so far: 31.0
Deduct 20 from 38 and we're left with 18.
Include the next digit (8) from the dividend after 18, then repeat: 188 / 20

Moving on to step 4:
188 divided by 20 is 9 with a remainder of 8.
Put 9 as the next digit of the answer. 
Result so far: 319.0
Subtract 180 from 188 to get 8.
Bring next digit (1) of the dividend behind the 8 and repeat the process: 81 / 20

Let's proceed to step 5:
When dividing 81 by 20, we get 4 with a remainder of 1.
Write down 4 as next digit of the result. 
Result so far: 3194.0
Subtract 80 from 81 to get 1.
Fetch the next digit (2) from the dividend, attach it to 1 and continue: 12 / 20

Step 6:
If we divide 12 by 20, we get 0 and a remainder of 12.
The next digit of our result is 0. 
Result so far: 31940.0
If we subtract 0 from 12, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 7:
20 goes into 120 6 times with a remainder of 0.
Write down 6 as next digit of the result. 
Result so far: 31940.6
Deduct 120 from 120 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.

Let's proceed to step 8:
The number 20 fits into 0 0 times, leaving a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 31940.6
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.

Step 9:
0 divided by 20 is 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 31940.6
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 quotient of the division is 31940.6, and the remainder is 0.0.