Let's divide 668512 by 18
Let's see how many times 18 fits into 668512.

Moving on to step 1:
When dividing 6 by 18, we get 0 with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Fetch the next digit (6) from the dividend, attach it to 6 and continue: 66 / 18

Let's proceed to step 2:
If we divide 66 by 18, we get 3 and a remainder of 12.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Subtracting 54 from 66 leaves us with 12.
Include the next digit (8) from the dividend after 12, then repeat: 128 / 18

Step 3:
18 can be fit into 128 7 times, resulting in a remainder of 2.
Write down 7 as next digit of the result. 
Result so far: 37.0
Subtracting 126 from 128 leaves us with 2.
Bring next digit (5) of the dividend behind the 2 and repeat the process: 25 / 18

Let's proceed to step 4:
18 goes into 25 1 times with a remainder of 7.
Put 1 as the next digit of the answer. 
Result so far: 371.0
Subtract 18 from 25 to get 7.
Grab the next digit (1) from the dividend, add it to 7, then carry on: 71 / 18

On to step 5:
71 divided by 18 is 3 with a remainder of 17.
Put 3 as the next digit of the answer. 
Result so far: 3713.0
The remainder is 17 after subtracting 54 from 71.
Take the next digit (2) from the dividend and append it to 17, then repeat: 172 / 18

Moving on to step 6:
If we divide 172 by 18, we get 9 and a remainder of 10.
Use 9 as the next digit of our solution. 
Result so far: 37139.0
Subtracting 162 from 172 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 7:
The number 18 fits into 100 5 times, leaving a remainder of 10.
Record the quotient 5 as the next digit in the result. 
Result so far: 37139.5
The remainder is 10 after subtracting 90 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 8:
100 divided by 18 is 5 with a remainder of 10.
Record the quotient 5 as the next digit in the result. 
Result so far: 37139.55
Deduct 90 from 100 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

In conclusion, the division gives 37139.55 with a balance of 0.01.