107915 ÷ 15 
The aim is to understand the frequency of 15 in 107915.

Step 1:
When dividing 1 by 15, we get 0 with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Include the next digit (0) from the dividend after 1, then repeat: 10 / 15

Going ahead to step 2:
The number 15 fits into 10 0 times, leaving a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 10 and we're left with 10.
Grab the next digit (7) from the dividend, add it to 10, then carry on: 107 / 15

On to step 3:
15 goes into 107 7 times with a remainder of 2.
Use 7 as the next digit of our solution. 
Result so far: 7.0
The remainder is 2 after subtracting 105 from 107.
Grab the next digit (9) from the dividend, add it to 2, then carry on: 29 / 15

Step 4:
When dividing 29 by 15, we get 1 with a remainder of 14.
Record the quotient 1 as the next digit in the result. 
Result so far: 71.0
The remainder is 14 after subtracting 15 from 29.
Fetch the next digit (1) from the dividend, attach it to 14 and continue: 141 / 15

Going ahead to step 5:
The number 15 fits into 141 9 times, leaving a remainder of 6.
The next digit of our result is 9. 
Result so far: 719.0
Subtract 135 from 141 to get 6.
Grab the next digit (5) from the dividend, add it to 6, then carry on: 65 / 15

Moving on to step 6:
The number 15 fits into 65 4 times, leaving a remainder of 5.
The number 4 becomes the next digit in our result. 
Result so far: 7194.0
If we subtract 60 from 65, we 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.

Step 7:
When dividing 50 by 15, we get 3 with a remainder of 5.
Record the quotient 3 as the next digit in the result. 
Result so far: 7194.3
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.

Advancing to step 8:
When dividing 50 by 15, we get 3 with a remainder of 5.
Use 3 as the next digit of our solution. 
Result so far: 7194.33
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.

In conclusion, the division gives 7194.33 with a balance of 0.005.