We divide 923409 by 20
We're looking to find how many times 20 goes into 923409.

On to step 1:
The number 20 fits into 9 0 times, leaving a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Take the next digit (2) from the dividend and append it to 9, then repeat: 92 / 20

Step 2:
92 divided by 20 is 4 with a remainder of 12.
Write down 4 as next digit of the result. 
Result so far: 4.0
If we take 80 away from 92, we end up with 12.
Take the next digit (3) from the dividend and append it to 12, then repeat: 123 / 20

On to step 3:
If we divide 123 by 20, we get 6 and a remainder of 3.
The number 6 becomes the next digit in our result. 
Result so far: 46.0
If we take 120 away from 123, we end up with 3.
Include the next digit (4) from the dividend after 3, then repeat: 34 / 20

Moving on to step 4:
If we divide 34 by 20, we get 1 and a remainder of 14.
Use 1 as the next digit of our solution. 
Result so far: 461.0
If we subtract 20 from 34, we get 14.
Bring next digit (0) of the dividend behind the 14 and repeat the process: 140 / 20

Going ahead to step 5:
If we divide 140 by 20, we get 7 and a remainder of 0.
The next digit of our result is 7. 
Result so far: 4617.0
The remainder is 0 after subtracting 140 from 140.
Include the next digit (9) from the dividend after 0, then repeat: 9 / 20

On to step 6:
20 can be fit into 9 0 times, resulting in a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 46170.0
If we take 0 away from 9, we end up with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Advancing to step 7:
20 can be fit into 90 4 times, resulting in a remainder of 10.
Use 4 as the next digit of our solution. 
Result so far: 46170.4
If we take 80 away from 90, we end up 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:
20 goes into 100 5 times with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 46170.45
Subtracting 100 from 100 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.

Let's proceed to step 9:
If we divide 0 by 20, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 46170.45
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.

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: 46170.45
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.

Our division results in 46170.45 with a remaining 0.0.