We look at the division of 178123 by 18 
We're looking to find how many times 18 goes into 178123.

Going ahead to step 1:
1 divided by 18 is 0 with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Take the next digit (7) from the dividend and append it to 1, then repeat: 17 / 18

On to step 2:
The number 18 fits into 17 0 times, leaving a remainder of 17.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 17, we end up with 17.
Take the next digit (8) from the dividend and append it to 17, then repeat: 178 / 18

Step 3:
18 can be fit into 178 9 times, resulting in a remainder of 16.
Write down 9 as next digit of the result. 
Result so far: 9.0
Subtract 162 from 178 to get 16.
Bring next digit (1) of the dividend behind the 16 and repeat the process: 161 / 18

Let's proceed to step 4:
161 divided by 18 is 8 with a remainder of 17.
Write down 8 as next digit of the result. 
Result so far: 98.0
Subtract 144 from 161 to get 17.
Append the next digit (2) from the dividend to 17 and continue with: 172 / 18

Moving on to step 5:
172 divided by 18 is 9 with a remainder of 10.
Write down 9 as next digit of the result. 
Result so far: 989.0
If we subtract 162 from 172, we get 10.
Include the next digit (3) from the dividend after 10, then repeat: 103 / 18

Advancing to step 6:
103 divided by 18 is 5 with a remainder of 13.
Record the quotient 5 as the next digit in the result. 
Result so far: 9895.0
Deduct 90 from 103 and we're left with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Let's proceed to step 7:
18 goes into 130 7 times with a remainder of 4.
Use 7 as the next digit of our solution. 
Result so far: 9895.7
Deduct 126 from 130 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.

On to step 8:
If we divide 40 by 18, we get 2 and a remainder of 4.
Put 2 as the next digit of the answer. 
Result so far: 9895.72
If we subtract 36 from 40, 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.

On to step 9:
18 goes into 40 2 times with a remainder of 4.
The number 2 becomes the next digit in our result. 
Result so far: 9895.722
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.

The final outcome is 9895.722, with a leftover of 0.0004.