178199 divided by 15 
Let's see how many times 15 fits into 178199.

Going ahead to step 1:
15 can be fit into 1 0 times, resulting in a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Bring next digit (7) of the dividend behind the 1 and repeat the process: 17 / 15

On to step 2:
15 can be fit into 17 1 times, resulting in a remainder of 2.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 2 after subtracting 15 from 17.
Include the next digit (8) from the dividend after 2, then repeat: 28 / 15

Advancing to step 3:
15 goes into 28 1 times with a remainder of 13.
Record the quotient 1 as the next digit in the result. 
Result so far: 11.0
The remainder is 13 after subtracting 15 from 28.
Fetch the next digit (1) from the dividend, attach it to 13 and continue: 131 / 15

Step 4:
15 can be fit into 131 8 times, resulting in a remainder of 11.
The number 8 becomes the next digit in our result. 
Result so far: 118.0
Subtract 120 from 131 to get 11.
Grab the next digit (9) from the dividend, add it to 11, then carry on: 119 / 15

Going ahead to step 5:
119 divided by 15 is 7 with a remainder of 14.
The next digit of our result is 7. 
Result so far: 1187.0
If we take 105 away from 119, we end up with 14.
Grab the next digit (9) from the dividend, add it to 14, then carry on: 149 / 15

Advancing to step 6:
When dividing 149 by 15, we get 9 with a remainder of 14.
The number 9 becomes the next digit in our result. 
Result so far: 11879.0
The remainder is 14 after subtracting 135 from 149.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Going ahead to step 7:
140 divided by 15 is 9 with a remainder of 5.
Put 9 as the next digit of the answer. 
Result so far: 11879.9
Subtract 135 from 140 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Going ahead to step 8:
15 can be fit into 50 3 times, resulting in a remainder of 5.
The next digit of our result is 3. 
Result so far: 11879.93
Subtract 45 from 50 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 9:
15 can be fit into 50 3 times, resulting in a remainder of 5.
The number 3 becomes the next digit in our result. 
Result so far: 11879.933
Subtracting 45 from 50 leaves us with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

The final outcome is 11879.933, with a leftover of 0.0005.