We divide 638085 by 20
Our goal is to divide 638085 by 20.

Step 1:
If we divide 6 by 20, we get 0 and a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Append the next digit (3) from the dividend to 6 and continue with: 63 / 20

Going ahead to step 2:
The number 20 fits into 63 3 times, leaving a remainder of 3.
Put 3 as the next digit of the answer. 
Result so far: 3.0
The remainder is 3 after subtracting 60 from 63.
Fetch the next digit (8) from the dividend, attach it to 3 and continue: 38 / 20

Let's proceed to step 3:
38 divided by 20 is 1 with a remainder of 18.
Record the quotient 1 as the next digit in the result. 
Result so far: 31.0
Deduct 20 from 38 and we're left with 18.
Include the next digit (0) from the dividend after 18, then repeat: 180 / 20

On to step 4:
180 divided by 20 is 9 with a remainder of 0.
Use 9 as the next digit of our solution. 
Result so far: 319.0
If we take 180 away from 180, we end up with 0.
Fetch the next digit (8) from the dividend, attach it to 0 and continue: 8 / 20

Going ahead to step 5:
If we divide 8 by 20, we get 0 and a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 3190.0
If we subtract 0 from 8, we get 8.
Include the next digit (5) from the dividend after 8, then repeat: 85 / 20

Advancing to step 6:
20 goes into 85 4 times with a remainder of 5.
The number 4 becomes the next digit in our result. 
Result so far: 31904.0
Subtract 80 from 85 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Advancing to step 7:
When dividing 50 by 20, we get 2 with a remainder of 10.
Write down 2 as next digit of the result. 
Result so far: 31904.2
The remainder is 10 after subtracting 40 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 8:
The number 20 fits into 100 5 times, leaving a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 31904.25
If we take 100 away from 100, we end up 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.

Moving on to step 9:
0 divided by 20 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 31904.25
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.

Step 10:
0 divided by 20 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 31904.25
The remainder is 0 after subtracting 0 from 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 31904.25, and the remainder is 0.0.