Let's divide 166159 by 9
We're looking to find how many times 9 goes into 166159.

On to step 1:
If we divide 1 by 9, we get 0 and a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Bring next digit (6) of the dividend behind the 1 and repeat the process: 16 / 9

Advancing to step 2:
9 can be fit into 16 1 times, resulting in a remainder of 7.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 9 from 16, we get 7.
Take the next digit (6) from the dividend and append it to 7, then repeat: 76 / 9

Advancing to step 3:
If we divide 76 by 9, we get 8 and a remainder of 4.
The next digit of our result is 8. 
Result so far: 18.0
If we subtract 72 from 76, we get 4.
Append the next digit (1) from the dividend to 4 and continue with: 41 / 9

Going ahead to step 4:
If we divide 41 by 9, we get 4 and a remainder of 5.
The next digit of our result is 4. 
Result so far: 184.0
If we subtract 36 from 41, we get 5.
Take the next digit (5) from the dividend and append it to 5, then repeat: 55 / 9

Moving on to step 5:
9 goes into 55 6 times with a remainder of 1.
Use 6 as the next digit of our solution. 
Result so far: 1846.0
Subtract 54 from 55 to get 1.
Include the next digit (9) from the dividend after 1, then repeat: 19 / 9

Let's proceed to step 6:
When dividing 19 by 9, we get 2 with a remainder of 1.
Put 2 as the next digit of the answer. 
Result so far: 18462.0
Deduct 18 from 19 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Moving on to step 7:
The number 9 fits into 10 1 times, leaving a remainder of 1.
The number 1 becomes the next digit in our result. 
Result so far: 18462.1
Deduct 9 from 10 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Step 8:
9 can be fit into 10 1 times, resulting in a remainder of 1.
The next digit of our result is 1. 
Result so far: 18462.11
Subtract 9 from 10 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

In conclusion, the division gives 18462.11 with a balance of 0.001.