Let's divide 904929 by 20
We're looking to find how many times 20 goes into 904929.

Moving 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
Subtract 0 from 9 to get 9.
Take the next digit (0) from the dividend and append it to 9, then repeat: 90 / 20

Step 2:
90 divided by 20 is 4 with a remainder of 10.
Write down 4 as next digit of the result. 
Result so far: 4.0
If we take 80 away from 90, we end up with 10.
Take the next digit (4) from the dividend and append it to 10, then repeat: 104 / 20

On to step 3:
When dividing 104 by 20, we get 5 with a remainder of 4.
The next digit of our result is 5. 
Result so far: 45.0
If we subtract 100 from 104, we get 4.
Fetch the next digit (9) from the dividend, attach it to 4 and continue: 49 / 20

Step 4:
49 divided by 20 is 2 with a remainder of 9.
The number 2 becomes the next digit in our result. 
Result so far: 452.0
If we subtract 40 from 49, we get 9.
Take the next digit (2) from the dividend and append it to 9, then repeat: 92 / 20

Advancing to step 5:
20 can be fit into 92 4 times, resulting in a remainder of 12.
Use 4 as the next digit of our solution. 
Result so far: 4524.0
Subtract 80 from 92 to get 12.
Fetch the next digit (9) from the dividend, attach it to 12 and continue: 129 / 20

On to step 6:
20 goes into 129 6 times with a remainder of 9.
The number 6 becomes the next digit in our result. 
Result so far: 45246.0
If we take 120 away from 129, 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.

Going ahead to step 7:
If we divide 90 by 20, we get 4 and a remainder of 10.
Write down 4 as next digit of the result. 
Result so far: 45246.4
If we subtract 80 from 90, we 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 can be fit into 100 5 times, resulting in a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 45246.45
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.

Moving on 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: 45246.45
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:
20 can be fit into 0 0 times, resulting in a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 45246.45
If we take 0 away from 0, 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.

The final outcome is 45246.45, with a leftover of 0.0.