We look at the division of 239991 by 17 
Our goal is to divide 239991 by 17.

Going ahead to step 1:
17 goes into 2 0 times with a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Bring next digit (3) of the dividend behind the 2 and repeat the process: 23 / 17

Step 2:
23 divided by 17 is 1 with a remainder of 6.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 17 from 23 leaves us with 6.
Include the next digit (9) from the dividend after 6, then repeat: 69 / 17

Advancing to step 3:
If we divide 69 by 17, we get 4 and a remainder of 1.
Record the quotient 4 as the next digit in the result. 
Result so far: 14.0
If we take 68 away from 69, we end up with 1.
Take the next digit (9) from the dividend and append it to 1, then repeat: 19 / 17

Let's proceed to step 4:
19 divided by 17 is 1 with a remainder of 2.
Write down 1 as next digit of the result. 
Result so far: 141.0
If we take 17 away from 19, we end up with 2.
Append the next digit (9) from the dividend to 2 and continue with: 29 / 17

Advancing to step 5:
17 can be fit into 29 1 times, resulting in a remainder of 12.
Put 1 as the next digit of the answer. 
Result so far: 1411.0
Deduct 17 from 29 and we're left with 12.
Include the next digit (1) from the dividend after 12, then repeat: 121 / 17

Step 6:
When dividing 121 by 17, we get 7 with a remainder of 2.
The next digit of our result is 7. 
Result so far: 14117.0
Subtract 119 from 121 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 7:
If we divide 20 by 17, we get 1 and a remainder of 3.
The next digit of our result is 1. 
Result so far: 14117.1
If we take 17 away from 20, we end up with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Step 8:
The number 17 fits into 30 1 times, leaving a remainder of 13.
Use 1 as the next digit of our solution. 
Result so far: 14117.11
If we take 17 away from 30, we end up 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.

After the division, we end up with 14117.11 and a remainder of 0.013.