865664 ÷ 2 
We want to divide 865664 by 2.

Going ahead to step 1:
The number 2 fits into 8 4 times, leaving a remainder of 0.
Write down 4 as next digit of the result. 
Result so far: 4.0
The remainder is 0 after subtracting 8 from 8.
Fetch the next digit (6) from the dividend, attach it to 0 and continue: 6 / 2

Step 2:
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: 43.0
Subtracting 6 from 6 leaves us with 0.
Include the next digit (5) from the dividend after 0, then repeat: 5 / 2

Advancing to step 3:
2 goes into 5 2 times with a remainder of 1.
Write down 2 as next digit of the result. 
Result so far: 432.0
Subtract 4 from 5 to get 1.
Append the next digit (6) from the dividend to 1 and continue with: 16 / 2

On to step 4:
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: 4328.0
Subtract 16 from 16 to get 0.
Grab the next digit (6) from the dividend, add it to 0, then carry on: 6 / 2

On to step 5:
2 can be fit into 6 3 times, resulting in a remainder of 0.
Put 3 as the next digit of the answer. 
Result so far: 43283.0
If we take 6 away from 6, we end up with 0.
Grab the next digit (4) from the dividend, add it to 0, then carry on: 4 / 2

Going ahead to step 6:
4 divided by 2 is 2 with a remainder of 0.
Record the quotient 2 as the next digit in the result. 
Result so far: 432832.0
Deduct 4 from 4 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 7:
0 divided by 2 is 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 432832.0
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.

Moving on to step 8:
0 divided by 2 is 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 432832.0
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.

Our division results in 432832.0 with a remaining 0.0.