We look at the division of 256986 by 2 
We're looking to find how many times 2 goes into 256986.

Let's proceed to step 1:
2 goes into 2 1 times with a remainder of 0.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 2 from 2 to get 0.
Bring next digit (5) of the dividend behind the 0 and repeat the process: 5 / 2

Going ahead to step 2:
When dividing 5 by 2, we get 2 with a remainder of 1.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
Subtract 4 from 5 to get 1.
Take the next digit (6) from the dividend and append it to 1, then repeat: 16 / 2

On to step 3:
When dividing 16 by 2, we get 8 with a remainder of 0.
Write down 8 as next digit of the result. 
Result so far: 128.0
Subtracting 16 from 16 leaves us with 0.
Grab the next digit (9) from the dividend, add it to 0, then carry on: 9 / 2

Advancing to step 4:
The number 2 fits into 9 4 times, leaving a remainder of 1.
Write down 4 as next digit of the result. 
Result so far: 1284.0
If we subtract 8 from 9, we get 1.
Fetch the next digit (8) from the dividend, attach it to 1 and continue: 18 / 2

Advancing to step 5:
The number 2 fits into 18 9 times, leaving a remainder of 0.
Put 9 as the next digit of the answer. 
Result so far: 12849.0
Deduct 18 from 18 and we're left with 0.
Grab the next digit (6) from the dividend, add it to 0, then carry on: 6 / 2

Moving on to step 6:
2 can be fit into 6 3 times, resulting in a remainder of 0.
Record the quotient 3 as the next digit in the result. 
Result so far: 128493.0
The remainder is 0 after subtracting 6 from 6.
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 7:
The number 2 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 128493.0
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.

On to step 8:
2 goes into 0 0 times with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 128493.0
Deduct 0 from 0 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.

The final outcome is 128493.0, with a leftover of 0.0.