We look at the division of 909150 by 20 
Let's see how many times 20 fits into 909150.

On to step 1:
20 can be fit into 9 0 times, resulting in a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Fetch the next digit (0) from the dividend, attach it to 9 and continue: 90 / 20

Let's proceed to step 2:
90 divided by 20 is 4 with a remainder of 10.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
If we take 80 away from 90, we end up with 10.
Include the next digit (9) from the dividend after 10, then repeat: 109 / 20

Let's proceed to step 3:
When dividing 109 by 20, we get 5 with a remainder of 9.
Put 5 as the next digit of the answer. 
Result so far: 45.0
If we take 100 away from 109, we end up with 9.
Include the next digit (1) from the dividend after 9, then repeat: 91 / 20

Let's proceed to step 4:
The number 20 fits into 91 4 times, leaving a remainder of 11.
Put 4 as the next digit of the answer. 
Result so far: 454.0
If we take 80 away from 91, we end up with 11.
Bring next digit (5) of the dividend behind the 11 and repeat the process: 115 / 20

Let's proceed to step 5:
When dividing 115 by 20, we get 5 with a remainder of 15.
The next digit of our result is 5. 
Result so far: 4545.0
Subtracting 100 from 115 leaves us with 15.
Fetch the next digit (0) from the dividend, attach it to 15 and continue: 150 / 20

Advancing to step 6:
The number 20 fits into 150 7 times, leaving a remainder of 10.
Put 7 as the next digit of the answer. 
Result so far: 45457.0
Subtract 140 from 150 to 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.

On to step 7:
20 can be fit into 100 5 times, resulting in a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 45457.5
Subtract 100 from 100 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.

On to step 8:
20 goes into 0 0 times with a remainder of 0.
The next digit of our result is 0. 
Result so far: 45457.5
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.

Let's proceed to step 9:
The number 20 fits into 0 0 times, leaving a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 45457.5
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.

The final result is 45457.5 with a remainder of 0.0.