We divide 638007 by 20
We want to divide 638007 by 20.

Advancing to step 1:
When dividing 6 by 20, we get 0 with 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.
Bring next digit (3) of the dividend behind the 6 and repeat the process: 63 / 20

Let's proceed to step 2:
20 goes into 63 3 times with a remainder of 3.
Use 3 as the next digit of our solution. 
Result so far: 3.0
If we take 60 away from 63, we end up with 3.
Include the next digit (8) from the dividend after 3, then repeat: 38 / 20

On to step 3:
When dividing 38 by 20, we get 1 with a remainder of 18.
Use 1 as the next digit of our solution. 
Result so far: 31.0
The remainder is 18 after subtracting 20 from 38.
Include the next digit (0) from the dividend after 18, then repeat: 180 / 20

Going ahead to step 4:
The number 20 fits into 180 9 times, leaving a remainder of 0.
Write down 9 as next digit of the result. 
Result so far: 319.0
The remainder is 0 after subtracting 180 from 180.
Include the next digit (0) from the dividend after 0, then repeat: 0 / 20

On to step 5:
If we divide 0 by 20, we get 0 and a remainder of 0.
The next digit of our result is 0. 
Result so far: 3190.0
Deduct 0 from 0 and we're left with 0.
Bring next digit (7) of the dividend behind the 0 and repeat the process: 7 / 20

Going ahead to step 6:
7 divided by 20 is 0 with a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 31900.0
Subtracting 0 from 7 leaves us with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Going ahead to step 7:
The number 20 fits into 70 3 times, leaving a remainder of 10.
The next digit of our result is 3. 
Result so far: 31900.3
Subtract 60 from 70 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 8:
20 goes into 100 5 times with a remainder of 0.
The next digit of our result is 5. 
Result so far: 31900.35
The remainder is 0 after subtracting 100 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 9:
The number 20 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 31900.35
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.

Moving on to step 10:
20 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 31900.35
Subtracting 0 from 0 leaves us 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.

The quotient of the division is 31900.35, and the remainder is 0.0.