We look at the division of 111277 by 15 
The aim is to understand the frequency of 15 in 111277.

Going ahead to step 1:
When dividing 1 by 15, we get 0 with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Include the next digit (1) from the dividend after 1, then repeat: 11 / 15

Advancing to step 2:
If we divide 11 by 15, we get 0 and a remainder of 11.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 11 leaves us with 11.
Bring next digit (1) of the dividend behind the 11 and repeat the process: 111 / 15

Going ahead to step 3:
15 can be fit into 111 7 times, resulting in a remainder of 6.
The next digit of our result is 7. 
Result so far: 7.0
Subtracting 105 from 111 leaves us with 6.
Bring next digit (2) of the dividend behind the 6 and repeat the process: 62 / 15

Step 4:
If we divide 62 by 15, we get 4 and a remainder of 2.
Record the quotient 4 as the next digit in the result. 
Result so far: 74.0
Subtracting 60 from 62 leaves us with 2.
Include the next digit (7) from the dividend after 2, then repeat: 27 / 15

Advancing to step 5:
The number 15 fits into 27 1 times, leaving a remainder of 12.
Put 1 as the next digit of the answer. 
Result so far: 741.0
Subtracting 15 from 27 leaves us with 12.
Take the next digit (7) from the dividend and append it to 12, then repeat: 127 / 15

On to step 6:
127 divided by 15 is 8 with a remainder of 7.
Use 8 as the next digit of our solution. 
Result so far: 7418.0
The remainder is 7 after subtracting 120 from 127.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

On to step 7:
70 divided by 15 is 4 with a remainder of 10.
The next digit of our result is 4. 
Result so far: 7418.4
Subtracting 60 from 70 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.

Step 8:
100 divided by 15 is 6 with a remainder of 10.
The next digit of our result is 6. 
Result so far: 7418.46
If we take 90 away from 100, we end up 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.

Step 9:
When dividing 100 by 15, we get 6 with a remainder of 10.
The number 6 becomes the next digit in our result. 
Result so far: 7418.466
If we take 90 away from 100, we end up 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 7418.466 with a remainder of 0.001.