Let's divide 507451 by 20
Our goal is to divide 507451 by 20.

Going ahead to step 1:
5 divided by 20 is 0 with a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Fetch the next digit (0) from the dividend, attach it to 5 and continue: 50 / 20

Step 2:
If we divide 50 by 20, we get 2 and a remainder of 10.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Subtract 40 from 50 to get 10.
Grab the next digit (7) from the dividend, add it to 10, then carry on: 107 / 20

Step 3:
The number 20 fits into 107 5 times, leaving a remainder of 7.
Use 5 as the next digit of our solution. 
Result so far: 25.0
Deduct 100 from 107 and we're left with 7.
Fetch the next digit (4) from the dividend, attach it to 7 and continue: 74 / 20

Let's proceed to step 4:
When dividing 74 by 20, we get 3 with a remainder of 14.
Use 3 as the next digit of our solution. 
Result so far: 253.0
Subtract 60 from 74 to get 14.
Grab the next digit (5) from the dividend, add it to 14, then carry on: 145 / 20

Step 5:
When dividing 145 by 20, we get 7 with a remainder of 5.
Use 7 as the next digit of our solution. 
Result so far: 2537.0
Deduct 140 from 145 and we're left with 5.
Bring next digit (1) of the dividend behind the 5 and repeat the process: 51 / 20

Going ahead to step 6:
20 can be fit into 51 2 times, resulting in a remainder of 11.
Use 2 as the next digit of our solution. 
Result so far: 25372.0
Subtract 40 from 51 to get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Advancing to step 7:
110 divided by 20 is 5 with a remainder of 10.
Put 5 as the next digit of the answer. 
Result so far: 25372.5
If we subtract 100 from 110, 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.

On to step 8:
20 can be fit into 100 5 times, resulting in a remainder of 0.
The next digit of our result is 5. 
Result so far: 25372.55
Subtracting 100 from 100 leaves us 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 quotient of the division is 25372.55, and the remainder is 0.0.