We divide 686308 by 18
We want to figure out the number of times 686308 can be divided by 18.

Moving on to step 1:
18 goes into 6 0 times with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Fetch the next digit (8) from the dividend, attach it to 6 and continue: 68 / 18

Step 2:
If we divide 68 by 18, we get 3 and a remainder of 14.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Subtracting 54 from 68 leaves us with 14.
Take the next digit (6) from the dividend and append it to 14, then repeat: 146 / 18

On to step 3:
18 can be fit into 146 8 times, resulting in a remainder of 2.
Record the quotient 8 as the next digit in the result. 
Result so far: 38.0
The remainder is 2 after subtracting 144 from 146.
Fetch the next digit (3) from the dividend, attach it to 2 and continue: 23 / 18

Moving on to step 4:
18 can be fit into 23 1 times, resulting in a remainder of 5.
Record the quotient 1 as the next digit in the result. 
Result so far: 381.0
The remainder is 5 after subtracting 18 from 23.
Take the next digit (0) from the dividend and append it to 5, then repeat: 50 / 18

Let's proceed to step 5:
18 can be fit into 50 2 times, resulting in a remainder of 14.
Put 2 as the next digit of the answer. 
Result so far: 3812.0
Deduct 36 from 50 and we're left with 14.
Bring next digit (8) of the dividend behind the 14 and repeat the process: 148 / 18

Going ahead to step 6:
If we divide 148 by 18, we get 8 and a remainder of 4.
The number 8 becomes the next digit in our result. 
Result so far: 38128.0
If we subtract 144 from 148, we 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.

Step 7:
18 goes into 40 2 times with a remainder of 4.
Use 2 as the next digit of our solution. 
Result so far: 38128.2
Deduct 36 from 40 and we're left 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.

Let's proceed to step 8:
40 divided by 18 is 2 with a remainder of 4.
The next digit of our result is 2. 
Result so far: 38128.22
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.

In conclusion, the division gives 38128.22 with a balance of 0.004.