251256 divided by 20 
We're looking to find how many times 20 goes into 251256.

Moving on 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
Deduct 0 from 2 and we're left with 2.
Include the next digit (5) from the dividend after 2, then repeat: 25 / 20

Moving on to step 2:
The number 20 fits into 25 1 times, leaving a remainder of 5.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 20 from 25, we get 5.
Grab the next digit (1) from the dividend, add it to 5, then carry on: 51 / 20

On to step 3:
20 goes into 51 2 times with a remainder of 11.
Write down 2 as next digit of the result. 
Result so far: 12.0
Subtract 40 from 51 to get 11.
Take the next digit (2) from the dividend and append it to 11, then repeat: 112 / 20

Advancing to step 4:
20 can be fit into 112 5 times, resulting in a remainder of 12.
The next digit of our result is 5. 
Result so far: 125.0
If we subtract 100 from 112, we get 12.
Bring next digit (5) of the dividend behind the 12 and repeat the process: 125 / 20

Moving on to step 5:
If we divide 125 by 20, we get 6 and a remainder of 5.
The number 6 becomes the next digit in our result. 
Result so far: 1256.0
Subtract 120 from 125 to get 5.
Bring next digit (6) of the dividend behind the 5 and repeat the process: 56 / 20

Step 6:
20 goes into 56 2 times with a remainder of 16.
The number 2 becomes the next digit in our result. 
Result so far: 12562.0
Deduct 40 from 56 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 7:
160 divided by 20 is 8 with a remainder of 0.
The next digit of our result is 8. 
Result so far: 12562.8
If we subtract 160 from 160, 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.

Going ahead to step 8:
0 divided by 20 is 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 12562.8
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.

Moving on to step 9:
20 can be fit into 0 0 times, resulting in a remainder of 0.
The next digit of our result is 0. 
Result so far: 12562.8
Subtracting 0 from 0 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.

After the division, we end up with 12562.8 and a remainder of 0.0.