Let's divide 686608 by 18
We want to figure out the number of times 686608 can be divided by 18.

On to step 1:
The number 18 fits into 6 0 times, leaving a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Bring next digit (8) of the dividend behind the 6 and repeat the process: 68 / 18

Moving on to step 2:
18 goes into 68 3 times with a remainder of 14.
Put 3 as the next digit of the answer. 
Result so far: 3.0
If we take 54 away from 68, we end up with 14.
Grab the next digit (6) from the dividend, add it to 14, then carry on: 146 / 18

Moving on to step 3:
146 divided by 18 is 8 with a remainder of 2.
Record the quotient 8 as the next digit in the result. 
Result so far: 38.0
Deduct 144 from 146 and we're left with 2.
Bring next digit (6) of the dividend behind the 2 and repeat the process: 26 / 18

Let's proceed to step 4:
When dividing 26 by 18, we get 1 with a remainder of 8.
Write down 1 as next digit of the result. 
Result so far: 381.0
The remainder is 8 after subtracting 18 from 26.
Fetch the next digit (0) from the dividend, attach it to 8 and continue: 80 / 18

Step 5:
The number 18 fits into 80 4 times, leaving a remainder of 8.
The number 4 becomes the next digit in our result. 
Result so far: 3814.0
If we take 72 away from 80, we end up with 8.
Fetch the next digit (8) from the dividend, attach it to 8 and continue: 88 / 18

Advancing to step 6:
The number 18 fits into 88 4 times, leaving a remainder of 16.
Put 4 as the next digit of the answer. 
Result so far: 38144.0
The remainder is 16 after subtracting 72 from 88.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 7:
If we divide 160 by 18, we get 8 and a remainder of 16.
Record the quotient 8 as the next digit in the result. 
Result so far: 38144.8
Subtracting 144 from 160 leaves us 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.

Let's proceed to step 8:
160 divided by 18 is 8 with a remainder of 16.
The next digit of our result is 8. 
Result so far: 38144.88
Deduct 144 from 160 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.

The final result is 38144.88 with a remainder of 0.016.