We divide 8187 by 15
The aim is to understand the frequency of 15 in 8187.

Let's proceed to step 1:
The number 15 fits into 8 0 times, leaving a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Take the next digit (1) from the dividend and append it to 8, then repeat: 81 / 15

Moving on to step 2:
15 goes into 81 5 times with a remainder of 6.
Use 5 as the next digit of our solution. 
Result so far: 5.0
The remainder is 6 after subtracting 75 from 81.
Fetch the next digit (8) from the dividend, attach it to 6 and continue: 68 / 15

Let's proceed to step 3:
The number 15 fits into 68 4 times, leaving a remainder of 8.
The next digit of our result is 4. 
Result so far: 54.0
If we take 60 away from 68, we end up with 8.
Append the next digit (7) from the dividend to 8 and continue with: 87 / 15

Let's proceed to step 4:
If we divide 87 by 15, we get 5 and a remainder of 12.
The number 5 becomes the next digit in our result. 
Result so far: 545.0
If we take 75 away from 87, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Step 5:
15 goes into 120 8 times with a remainder of 0.
The next digit of our result is 8. 
Result so far: 545.8
If we subtract 120 from 120, we 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.

Advancing to step 6:
15 goes into 0 0 times with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 545.8
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 7:
If we divide 0 by 15, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 545.8
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The quotient of the division is 545.8, and the remainder is 0.0.