We look at the division of 920439 by 45 
Let's see how many times 45 fits into 920439.

Advancing to step 1:
When dividing 9 by 45, we get 0 with a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Include the next digit (2) from the dividend after 9, then repeat: 92 / 45

Going ahead to step 2:
45 can be fit into 92 2 times, resulting in a remainder of 2.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Subtracting 90 from 92 leaves us with 2.
Fetch the next digit (0) from the dividend, attach it to 2 and continue: 20 / 45

Going ahead to step 3:
45 can be fit into 20 0 times, resulting in a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 20.0
Subtract 0 from 20 to get 20.
Append the next digit (4) from the dividend to 20 and continue with: 204 / 45

Advancing to step 4:
204 divided by 45 is 4 with a remainder of 24.
Use 4 as the next digit of our solution. 
Result so far: 204.0
Subtracting 180 from 204 leaves us with 24.
Grab the next digit (3) from the dividend, add it to 24, then carry on: 243 / 45

Advancing to step 5:
243 divided by 45 is 5 with a remainder of 18.
The number 5 becomes the next digit in our result. 
Result so far: 2045.0
Deduct 225 from 243 and we're left with 18.
Fetch the next digit (9) from the dividend, attach it to 18 and continue: 189 / 45

Going ahead to step 6:
The number 45 fits into 189 4 times, leaving a remainder of 9.
The next digit of our result is 4. 
Result so far: 20454.0
Subtract 180 from 189 to get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

On to step 7:
If we divide 90 by 45, we get 2 and a remainder of 0.
Use 2 as the next digit of our solution. 
Result so far: 20454.2
Subtract 90 from 90 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.

Going ahead to step 8:
0 divided by 45 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 20454.2
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.

On to step 9:
If we divide 0 by 45, we get 0 and a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 20454.2
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 final outcome is 20454.2, with a leftover of 0.0.