186171 divided by 15 
Let's see how many times 15 fits into 186171.

Going ahead to step 1:
1 divided by 15 is 0 with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Bring next digit (8) of the dividend behind the 1 and repeat the process: 18 / 15

Going ahead to step 2:
15 can be fit into 18 1 times, resulting in a remainder of 3.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we subtract 15 from 18, we get 3.
Bring next digit (6) of the dividend behind the 3 and repeat the process: 36 / 15

Going ahead to step 3:
15 can be fit into 36 2 times, resulting in a remainder of 6.
The next digit of our result is 2. 
Result so far: 12.0
Subtracting 30 from 36 leaves us with 6.
Include the next digit (1) from the dividend after 6, then repeat: 61 / 15

Going ahead to step 4:
61 divided by 15 is 4 with a remainder of 1.
Write down 4 as next digit of the result. 
Result so far: 124.0
Subtracting 60 from 61 leaves us with 1.
Grab the next digit (7) from the dividend, add it to 1, then carry on: 17 / 15

Moving on to step 5:
If we divide 17 by 15, we get 1 and a remainder of 2.
The next digit of our result is 1. 
Result so far: 1241.0
Subtract 15 from 17 to get 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 15

Step 6:
21 divided by 15 is 1 with a remainder of 6.
Record the quotient 1 as the next digit in the result. 
Result so far: 12411.0
Subtract 15 from 21 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 7:
The number 15 fits into 60 4 times, leaving a remainder of 0.
Write down 4 as next digit of the result. 
Result so far: 12411.4
Subtract 60 from 60 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 8:
The number 15 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 12411.4
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 9:
If we divide 0 by 15, we get 0 and a remainder of 0.
The next digit of our result is 0. 
Result so far: 12411.4
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

In conclusion, the division gives 12411.4 with a balance of 0.0.