We look at the division of 66108 by 18 
We want to divide 66108 by 18.

On to step 1:
6 divided by 18 is 0 with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Include the next digit (6) from the dividend after 6, then repeat: 66 / 18

On to step 2:
If we divide 66 by 18, we get 3 and a remainder of 12.
Write down 3 as next digit of the result. 
Result so far: 3.0
Subtracting 54 from 66 leaves us with 12.
Fetch the next digit (1) from the dividend, attach it to 12 and continue: 121 / 18

Let's proceed to step 3:
18 can be fit into 121 6 times, resulting in a remainder of 13.
Write down 6 as next digit of the result. 
Result so far: 36.0
Deduct 108 from 121 and we're left with 13.
Append the next digit (0) from the dividend to 13 and continue with: 130 / 18

On to step 4:
130 divided by 18 is 7 with a remainder of 4.
The next digit of our result is 7. 
Result so far: 367.0
If we subtract 126 from 130, we get 4.
Fetch the next digit (8) from the dividend, attach it to 4 and continue: 48 / 18

Advancing to step 5:
48 divided by 18 is 2 with a remainder of 12.
Record the quotient 2 as the next digit in the result. 
Result so far: 3672.0
Deduct 36 from 48 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 6:
120 divided by 18 is 6 with a remainder of 12.
Write down 6 as next digit of the result. 
Result so far: 3672.6
The remainder is 12 after subtracting 108 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 7:
18 can be fit into 120 6 times, resulting in a remainder of 12.
Put 6 as the next digit of the answer. 
Result so far: 3672.66
If we take 108 away from 120, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

In conclusion, the division gives 3672.66 with a balance of 0.012.