Let's divide 450950 by 20
We're looking to find how many times 20 goes into 450950.

Advancing to step 1:
20 can be fit into 4 0 times, resulting in a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Fetch the next digit (5) from the dividend, attach it to 4 and continue: 45 / 20

Going ahead to step 2:
When dividing 45 by 20, we get 2 with a remainder of 5.
Put 2 as the next digit of the answer. 
Result so far: 2.0
The remainder is 5 after subtracting 40 from 45.
Fetch the next digit (0) from the dividend, attach it to 5 and continue: 50 / 20

On to step 3:
If we divide 50 by 20, we get 2 and a remainder of 10.
Use 2 as the next digit of our solution. 
Result so far: 22.0
The remainder is 10 after subtracting 40 from 50.
Include the next digit (9) from the dividend after 10, then repeat: 109 / 20

Moving on to step 4:
When dividing 109 by 20, we get 5 with a remainder of 9.
Record the quotient 5 as the next digit in the result. 
Result so far: 225.0
The remainder is 9 after subtracting 100 from 109.
Grab the next digit (5) from the dividend, add it to 9, then carry on: 95 / 20

Going ahead to step 5:
The number 20 fits into 95 4 times, leaving a remainder of 15.
Use 4 as the next digit of our solution. 
Result so far: 2254.0
Subtracting 80 from 95 leaves us with 15.
Fetch the next digit (0) from the dividend, attach it to 15 and continue: 150 / 20

On to step 6:
When dividing 150 by 20, we get 7 with a remainder of 10.
The next digit of our result is 7. 
Result so far: 22547.0
Deduct 140 from 150 and we're left 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.

On to step 7:
When dividing 100 by 20, we get 5 with a remainder of 0.
The next digit of our result is 5. 
Result so far: 22547.5
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.

Let's proceed 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: 22547.5
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.

On to step 9:
The number 20 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 22547.5
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.

The quotient of the division is 22547.5, and the remainder is 0.0.