We look at the division of 331335 by 20 
Let's see how many times 20 fits into 331335.

On to step 1:
The number 20 fits into 3 0 times, leaving a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Bring next digit (3) of the dividend behind the 3 and repeat the process: 33 / 20

Moving on to step 2:
When dividing 33 by 20, we get 1 with a remainder of 13.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 20 from 33 to get 13.
Append the next digit (1) from the dividend to 13 and continue with: 131 / 20

Moving on to step 3:
20 can be fit into 131 6 times, resulting in a remainder of 11.
Write down 6 as next digit of the result. 
Result so far: 16.0
If we subtract 120 from 131, we get 11.
Include the next digit (3) from the dividend after 11, then repeat: 113 / 20

Moving on to step 4:
The number 20 fits into 113 5 times, leaving a remainder of 13.
Put 5 as the next digit of the answer. 
Result so far: 165.0
If we subtract 100 from 113, we get 13.
Bring next digit (3) of the dividend behind the 13 and repeat the process: 133 / 20

Moving on to step 5:
133 divided by 20 is 6 with a remainder of 13.
Use 6 as the next digit of our solution. 
Result so far: 1656.0
If we subtract 120 from 133, we get 13.
Append the next digit (5) from the dividend to 13 and continue with: 135 / 20

Step 6:
The number 20 fits into 135 6 times, leaving a remainder of 15.
Put 6 as the next digit of the answer. 
Result so far: 16566.0
Deduct 120 from 135 and we're left with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Advancing to step 7:
If we divide 150 by 20, we get 7 and a remainder of 10.
Put 7 as the next digit of the answer. 
Result so far: 16566.7
Deduct 140 from 150 and we're left 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.

Advancing to step 8:
The number 20 fits into 100 5 times, leaving a remainder of 0.
The next digit of our result is 5. 
Result so far: 16566.75
If we subtract 100 from 100, 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.

Let's proceed to step 9:
20 goes into 0 0 times with a remainder of 0.
The next digit of our result is 0. 
Result so far: 16566.75
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.

Going ahead to step 10:
When dividing 0 by 20, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 16566.75
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 final result is 16566.75 with a remainder of 0.0.