249782 ÷ 20 
Our goal is to divide 249782 by 20.

Going ahead to step 1:
2 divided by 20 is 0 with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Grab the next digit (4) from the dividend, add it to 2, then carry on: 24 / 20

On to step 2:
20 goes into 24 1 times with a remainder of 4.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 20 from 24, we get 4.
Bring next digit (9) of the dividend behind the 4 and repeat the process: 49 / 20

Advancing to step 3:
20 can be fit into 49 2 times, resulting in a remainder of 9.
The next digit of our result is 2. 
Result so far: 12.0
The remainder is 9 after subtracting 40 from 49.
Fetch the next digit (7) from the dividend, attach it to 9 and continue: 97 / 20

Going ahead to step 4:
20 can be fit into 97 4 times, resulting in a remainder of 17.
Write down 4 as next digit of the result. 
Result so far: 124.0
Subtracting 80 from 97 leaves us with 17.
Fetch the next digit (8) from the dividend, attach it to 17 and continue: 178 / 20

Step 5:
When dividing 178 by 20, we get 8 with a remainder of 18.
Write down 8 as next digit of the result. 
Result so far: 1248.0
If we subtract 160 from 178, we get 18.
Append the next digit (2) from the dividend to 18 and continue with: 182 / 20

Going ahead to step 6:
When dividing 182 by 20, we get 9 with a remainder of 2.
The number 9 becomes the next digit in our result. 
Result so far: 12489.0
Subtracting 180 from 182 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 7:
20 goes into 20 1 times with a remainder of 0.
Write down 1 as next digit of the result. 
Result so far: 12489.1
Deduct 20 from 20 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.

On to step 8:
20 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 12489.1
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:
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: 12489.1
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.

Our division results in 12489.1 with a remaining 0.0.