486263 ÷ 20 
Our goal is to divide 486263 by 20.

Let's proceed to step 1:
When dividing 4 by 20, we get 0 with a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Fetch the next digit (8) from the dividend, attach it to 4 and continue: 48 / 20

Step 2:
The number 20 fits into 48 2 times, leaving a remainder of 8.
Use 2 as the next digit of our solution. 
Result so far: 2.0
If we take 40 away from 48, we end up with 8.
Bring next digit (6) of the dividend behind the 8 and repeat the process: 86 / 20

Step 3:
The number 20 fits into 86 4 times, leaving a remainder of 6.
The next digit of our result is 4. 
Result so far: 24.0
The remainder is 6 after subtracting 80 from 86.
Fetch the next digit (2) from the dividend, attach it to 6 and continue: 62 / 20

Step 4:
62 divided by 20 is 3 with a remainder of 2.
The number 3 becomes the next digit in our result. 
Result so far: 243.0
If we subtract 60 from 62, we get 2.
Take the next digit (6) from the dividend and append it to 2, then repeat: 26 / 20

Going ahead to step 5:
When dividing 26 by 20, we get 1 with a remainder of 6.
Put 1 as the next digit of the answer. 
Result so far: 2431.0
If we subtract 20 from 26, we get 6.
Grab the next digit (3) from the dividend, add it to 6, then carry on: 63 / 20

Moving on to step 6:
When dividing 63 by 20, we get 3 with a remainder of 3.
Write down 3 as next digit of the result. 
Result so far: 24313.0
The remainder is 3 after subtracting 60 from 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 7:
The number 20 fits into 30 1 times, leaving a remainder of 10.
The next digit of our result is 1. 
Result so far: 24313.1
If we subtract 20 from 30, 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.

Step 8:
The number 20 fits into 100 5 times, leaving a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 24313.15
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.

Moving on to step 9:
20 can be fit into 0 0 times, resulting in a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 24313.15
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 10:
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: 24313.15
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.

Our division results in 24313.15 with a remaining 0.0.