903112 divided by 20 
We're looking to find how many times 20 goes into 903112.

Step 1:
When dividing 9 by 20, we get 0 with a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Fetch the next digit (0) from the dividend, attach it to 9 and continue: 90 / 20

Step 2:
20 goes into 90 4 times with a remainder of 10.
The next digit of our result is 4. 
Result so far: 4.0
If we subtract 80 from 90, we get 10.
Append the next digit (3) from the dividend to 10 and continue with: 103 / 20

On to step 3:
The number 20 fits into 103 5 times, leaving a remainder of 3.
Use 5 as the next digit of our solution. 
Result so far: 45.0
Subtract 100 from 103 to get 3.
Append the next digit (1) from the dividend to 3 and continue with: 31 / 20

Going ahead to step 4:
20 can be fit into 31 1 times, resulting in a remainder of 11.
Put 1 as the next digit of the answer. 
Result so far: 451.0
The remainder is 11 after subtracting 20 from 31.
Take the next digit (1) from the dividend and append it to 11, then repeat: 111 / 20

Going ahead to step 5:
111 divided by 20 is 5 with a remainder of 11.
Record the quotient 5 as the next digit in the result. 
Result so far: 4515.0
Subtracting 100 from 111 leaves us with 11.
Bring next digit (2) of the dividend behind the 11 and repeat the process: 112 / 20

Moving on to step 6:
The number 20 fits into 112 5 times, leaving a remainder of 12.
Write down 5 as next digit of the result. 
Result so far: 45155.0
Subtract 100 from 112 to 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:
If we divide 120 by 20, we get 6 and a remainder of 0.
Use 6 as the next digit of our solution. 
Result so far: 45155.6
If we take 120 away from 120, 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 8:
If we divide 0 by 20, we get 0 and a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 45155.6
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.

Let's proceed 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: 45155.6
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.

The quotient of the division is 45155.6, and the remainder is 0.0.