We divide 631999 by 20
Let's see how many times 20 fits into 631999.

Moving on to step 1:
20 goes into 6 0 times with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Append the next digit (3) from the dividend to 6 and continue with: 63 / 20

Let's proceed to step 2:
If we divide 63 by 20, we get 3 and a remainder of 3.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
The remainder is 3 after subtracting 60 from 63.
Grab the next digit (1) from the dividend, add it to 3, then carry on: 31 / 20

Advancing to step 3:
If we divide 31 by 20, we get 1 and a remainder of 11.
Record the quotient 1 as the next digit in the result. 
Result so far: 31.0
Subtract 20 from 31 to get 11.
Append the next digit (9) from the dividend to 11 and continue with: 119 / 20

Going ahead to step 4:
20 can be fit into 119 5 times, resulting in a remainder of 19.
Put 5 as the next digit of the answer. 
Result so far: 315.0
Deduct 100 from 119 and we're left with 19.
Append the next digit (9) from the dividend to 19 and continue with: 199 / 20

Step 5:
The number 20 fits into 199 9 times, leaving a remainder of 19.
Record the quotient 9 as the next digit in the result. 
Result so far: 3159.0
If we take 180 away from 199, we end up with 19.
Take the next digit (9) from the dividend and append it to 19, then repeat: 199 / 20

Step 6:
When dividing 199 by 20, we get 9 with a remainder of 19.
Put 9 as the next digit of the answer. 
Result so far: 31599.0
If we subtract 180 from 199, we get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Moving on to step 7:
The number 20 fits into 190 9 times, leaving a remainder of 10.
Record the quotient 9 as the next digit in the result. 
Result so far: 31599.9
Subtracting 180 from 190 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 8:
When dividing 100 by 20, we get 5 with a remainder of 0.
The next digit of our result is 5. 
Result so far: 31599.95
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.

Step 9:
0 divided by 20 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 31599.95
Deduct 0 from 0 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 10:
0 divided by 20 is 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 31599.95
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.

In conclusion, the division gives 31599.95 with a balance of 0.0.