We divide 505453 by 20
We're looking to find how many times 20 goes into 505453.

Going ahead to step 1:
When dividing 5 by 20, we get 0 with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Bring next digit (0) of the dividend behind the 5 and repeat the process: 50 / 20

Moving on to step 2:
20 can be fit into 50 2 times, resulting in a remainder of 10.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Subtracting 40 from 50 leaves us with 10.
Bring next digit (5) of the dividend behind the 10 and repeat the process: 105 / 20

Going ahead to step 3:
When dividing 105 by 20, we get 5 with a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 25.0
If we subtract 100 from 105, we get 5.
Fetch the next digit (4) from the dividend, attach it to 5 and continue: 54 / 20

Advancing to step 4:
20 can be fit into 54 2 times, resulting in a remainder of 14.
The number 2 becomes the next digit in our result. 
Result so far: 252.0
Deduct 40 from 54 and we're left with 14.
Fetch the next digit (5) from the dividend, attach it to 14 and continue: 145 / 20

On to step 5:
20 can be fit into 145 7 times, resulting in a remainder of 5.
Record the quotient 7 as the next digit in the result. 
Result so far: 2527.0
Subtract 140 from 145 to get 5.
Append the next digit (3) from the dividend to 5 and continue with: 53 / 20

Moving on to step 6:
When dividing 53 by 20, we get 2 with a remainder of 13.
The next digit of our result is 2. 
Result so far: 25272.0
If we subtract 40 from 53, we get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

On to step 7:
20 can be fit into 130 6 times, resulting in a remainder of 10.
Record the quotient 6 as the next digit in the result. 
Result so far: 25272.6
If we subtract 120 from 130, 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.

Advancing to step 8:
When dividing 100 by 20, we get 5 with a remainder of 0.
The next digit of our result is 5. 
Result so far: 25272.65
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 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: 25272.65
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.

On to step 10:
When dividing 0 by 20, we get 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 25272.65
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 final outcome is 25272.65, with a leftover of 0.0.