We divide 686686 by 2
We're looking to find how many times 2 goes into 686686.

Going ahead to step 1:
2 goes into 6 3 times with a remainder of 0.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Deduct 6 from 6 and we're left with 0.
Take the next digit (8) from the dividend and append it to 0, then repeat: 8 / 2

Going ahead to step 2:
8 divided by 2 is 4 with a remainder of 0.
Use 4 as the next digit of our solution. 
Result so far: 34.0
If we subtract 8 from 8, we get 0.
Grab the next digit (6) from the dividend, add it to 0, then carry on: 6 / 2

Step 3:
The number 2 fits into 6 3 times, leaving a remainder of 0.
Put 3 as the next digit of the answer. 
Result so far: 343.0
The remainder is 0 after subtracting 6 from 6.
Grab the next digit (6) from the dividend, add it to 0, then carry on: 6 / 2

On to step 4:
2 goes into 6 3 times with a remainder of 0.
The next digit of our result is 3. 
Result so far: 3433.0
The remainder is 0 after subtracting 6 from 6.
Fetch the next digit (8) from the dividend, attach it to 0 and continue: 8 / 2

Advancing to step 5:
If we divide 8 by 2, we get 4 and a remainder of 0.
Use 4 as the next digit of our solution. 
Result so far: 34334.0
Subtract 8 from 8 to get 0.
Fetch the next digit (6) from the dividend, attach it to 0 and continue: 6 / 2

Step 6:
6 divided by 2 is 3 with a remainder of 0.
The number 3 becomes the next digit in our result. 
Result so far: 343343.0
Subtract 6 from 6 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.

Let's proceed to step 7:
When dividing 0 by 2, we get 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 343343.0
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:
If we divide 0 by 2, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 343343.0
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

In conclusion, the division gives 343343.0 with a balance of 0.0.