We're dividing 392160 by 18 
Let's see how many times 18 fits into 392160.

Going ahead to step 1:
3 divided by 18 is 0 with a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Take the next digit (9) from the dividend and append it to 3, then repeat: 39 / 18

Step 2:
39 divided by 18 is 2 with a remainder of 3.
Write down 2 as next digit of the result. 
Result so far: 2.0
Subtract 36 from 39 to get 3.
Append the next digit (2) from the dividend to 3 and continue with: 32 / 18

On to step 3:
18 goes into 32 1 times with a remainder of 14.
Use 1 as the next digit of our solution. 
Result so far: 21.0
Subtracting 18 from 32 leaves us with 14.
Bring next digit (1) of the dividend behind the 14 and repeat the process: 141 / 18

On to step 4:
The number 18 fits into 141 7 times, leaving a remainder of 15.
Use 7 as the next digit of our solution. 
Result so far: 217.0
Deduct 126 from 141 and we're left with 15.
Append the next digit (6) from the dividend to 15 and continue with: 156 / 18

Advancing to step 5:
18 goes into 156 8 times with a remainder of 12.
Use 8 as the next digit of our solution. 
Result so far: 2178.0
The remainder is 12 after subtracting 144 from 156.
Fetch the next digit (0) from the dividend, attach it to 12 and continue: 120 / 18

Going ahead to step 6:
When dividing 120 by 18, we get 6 with a remainder of 12.
Record the quotient 6 as the next digit in the result. 
Result so far: 21786.0
Subtracting 108 from 120 leaves us 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.

Step 7:
18 goes into 120 6 times with a remainder of 12.
Write down 6 as next digit of the result. 
Result so far: 21786.6
Deduct 108 from 120 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.

Going ahead to step 8:
18 can be fit into 120 6 times, resulting in a remainder of 12.
The number 6 becomes the next digit in our result. 
Result so far: 21786.66
Deduct 108 from 120 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.

In conclusion, the division gives 21786.66 with a balance of 0.012.