188173 divided by 15 
Let's see how many times 15 fits into 188173.

Going ahead to step 1:
1 divided by 15 is 0 with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Append the next digit (8) from the dividend to 1 and continue with: 18 / 15

Step 2:
If we divide 18 by 15, we get 1 and a remainder of 3.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 15 from 18 leaves us with 3.
Take the next digit (8) from the dividend and append it to 3, then repeat: 38 / 15

Moving on to step 3:
15 can be fit into 38 2 times, resulting in a remainder of 8.
Use 2 as the next digit of our solution. 
Result so far: 12.0
The remainder is 8 after subtracting 30 from 38.
Append the next digit (1) from the dividend to 8 and continue with: 81 / 15

Let's proceed to step 4:
15 goes into 81 5 times with a remainder of 6.
The next digit of our result is 5. 
Result so far: 125.0
Deduct 75 from 81 and we're left with 6.
Grab the next digit (7) from the dividend, add it to 6, then carry on: 67 / 15

Step 5:
When dividing 67 by 15, we get 4 with a remainder of 7.
The next digit of our result is 4. 
Result so far: 1254.0
Subtracting 60 from 67 leaves us with 7.
Grab the next digit (3) from the dividend, add it to 7, then carry on: 73 / 15

Let's proceed to step 6:
If we divide 73 by 15, we get 4 and a remainder of 13.
Write down 4 as next digit of the result. 
Result so far: 12544.0
Subtract 60 from 73 to get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Step 7:
If we divide 130 by 15, we get 8 and a remainder of 10.
Put 8 as the next digit of the answer. 
Result so far: 12544.8
Subtracting 120 from 130 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 8:
The number 15 fits into 100 6 times, leaving a remainder of 10.
Use 6 as the next digit of our solution. 
Result so far: 12544.86
The remainder is 10 after subtracting 90 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 9:
If we divide 100 by 15, we get 6 and a remainder of 10.
The next digit of our result is 6. 
Result so far: 12544.866
Deduct 90 from 100 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

The final result is 12544.866 with a remainder of 0.001.