We divide 256240 by 12
Our goal is to divide 256240 by 12.

Going ahead to step 1:
If we divide 2 by 12, we get 0 and a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Fetch the next digit (5) from the dividend, attach it to 2 and continue: 25 / 12

On to step 2:
The number 12 fits into 25 2 times, leaving a remainder of 1.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Subtracting 24 from 25 leaves us with 1.
Include the next digit (6) from the dividend after 1, then repeat: 16 / 12

Step 3:
The number 12 fits into 16 1 times, leaving a remainder of 4.
The next digit of our result is 1. 
Result so far: 21.0
Subtracting 12 from 16 leaves us with 4.
Take the next digit (2) from the dividend and append it to 4, then repeat: 42 / 12

Step 4:
12 goes into 42 3 times with a remainder of 6.
Use 3 as the next digit of our solution. 
Result so far: 213.0
Subtracting 36 from 42 leaves us with 6.
Append the next digit (4) from the dividend to 6 and continue with: 64 / 12

Advancing to step 5:
When dividing 64 by 12, we get 5 with a remainder of 4.
Write down 5 as next digit of the result. 
Result so far: 2135.0
Subtract 60 from 64 to get 4.
Append the next digit (0) from the dividend to 4 and continue with: 40 / 12

Step 6:
When dividing 40 by 12, we get 3 with a remainder of 4.
Write down 3 as next digit of the result. 
Result so far: 21353.0
If we take 36 away from 40, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 7:
If we divide 40 by 12, we get 3 and a remainder of 4.
Use 3 as the next digit of our solution. 
Result so far: 21353.3
Subtract 36 from 40 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 8:
12 goes into 40 3 times with a remainder of 4.
Record the quotient 3 as the next digit in the result. 
Result so far: 21353.33
The remainder is 4 after subtracting 36 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

After the division, we end up with 21353.33 and a remainder of 0.004.