We're dividing 189104 by 15 
The aim is to understand the frequency of 15 in 189104.

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
The remainder is 1 after subtracting 0 from 1.
Take the next digit (8) from the dividend and append it to 1, then repeat: 18 / 15

Going ahead to step 2:
18 divided by 15 is 1 with a remainder of 3.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 15 from 18 leaves us with 3.
Bring next digit (9) of the dividend behind the 3 and repeat the process: 39 / 15

Moving on to step 3:
The number 15 fits into 39 2 times, leaving a remainder of 9.
Put 2 as the next digit of the answer. 
Result so far: 12.0
Subtracting 30 from 39 leaves us with 9.
Fetch the next digit (1) from the dividend, attach it to 9 and continue: 91 / 15

Moving on to step 4:
When dividing 91 by 15, we get 6 with a remainder of 1.
Put 6 as the next digit of the answer. 
Result so far: 126.0
The remainder is 1 after subtracting 90 from 91.
Append the next digit (0) from the dividend to 1 and continue with: 10 / 15

On to step 5:
10 divided by 15 is 0 with a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 1260.0
Subtracting 0 from 10 leaves us with 10.
Append the next digit (4) from the dividend to 10 and continue with: 104 / 15

Let's proceed to step 6:
104 divided by 15 is 6 with a remainder of 14.
Record the quotient 6 as the next digit in the result. 
Result so far: 12606.0
The remainder is 14 after subtracting 90 from 104.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Advancing to step 7:
15 can be fit into 140 9 times, resulting in a remainder of 5.
Use 9 as the next digit of our solution. 
Result so far: 12606.9
The remainder is 5 after subtracting 135 from 140.
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 goes into 50 3 times with a remainder of 5.
The number 3 becomes the next digit in our result. 
Result so far: 12606.93
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.

On to step 9:
The number 15 fits into 50 3 times, leaving a remainder of 5.
The number 3 becomes the next digit in our result. 
Result so far: 12606.933
The remainder is 5 after subtracting 45 from 50.
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 result is 12606.933 with a remainder of 0.0005.