We're dividing 27166928 by 15 
The aim is to understand the frequency of 15 in 27166928.

Going ahead to step 1:
If we divide 2 by 15, we get 0 and a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Append the next digit (7) from the dividend to 2 and continue with: 27 / 15

Let's proceed to step 2:
When dividing 27 by 15, we get 1 with a remainder of 12.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 15 from 27 leaves us with 12.
Include the next digit (1) from the dividend after 12, then repeat: 121 / 15

Going ahead to step 3:
The number 15 fits into 121 8 times, leaving a remainder of 1.
Put 8 as the next digit of the answer. 
Result so far: 18.0
Subtracting 120 from 121 leaves us with 1.
Append the next digit (6) from the dividend to 1 and continue with: 16 / 15

Going ahead to step 4:
16 divided by 15 is 1 with a remainder of 1.
The next digit of our result is 1. 
Result so far: 181.0
If we subtract 15 from 16, we get 1.
Grab the next digit (6) from the dividend, add it to 1, then carry on: 16 / 15

On to step 5:
16 divided by 15 is 1 with a remainder of 1.
Record the quotient 1 as the next digit in the result. 
Result so far: 1811.0
Deduct 15 from 16 and we're left with 1.
Append the next digit (9) from the dividend to 1 and continue with: 19 / 15

Going ahead to step 6:
19 divided by 15 is 1 with a remainder of 4.
Use 1 as the next digit of our solution. 
Result so far: 18111.0
The remainder is 4 after subtracting 15 from 19.
Grab the next digit (2) from the dividend, add it to 4, then carry on: 42 / 15

Going ahead to step 7:
15 can be fit into 42 2 times, resulting in a remainder of 12.
Use 2 as the next digit of our solution. 
Result so far: 181112.0
If we take 30 away from 42, we end up with 12.
Fetch the next digit (8) from the dividend, attach it to 12 and continue: 128 / 15

Let's proceed to step 8:
The number 15 fits into 128 8 times, leaving a remainder of 8.
Put 8 as the next digit of the answer. 
Result so far: 1811128.0
Deduct 120 from 128 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 9:
80 divided by 15 is 5 with a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 1811128.5
Deduct 75 from 80 and we're left 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.

Step 10:
15 goes into 50 3 times with a remainder of 5.
The number 3 becomes the next digit in our result. 
Result so far: 1811128.53
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.

Step 11:
50 divided by 15 is 3 with a remainder of 5.
Put 3 as the next digit of the answer. 
Result so far: 1811128.533
Deduct 45 from 50 and we're left 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.

The quotient of the division is 1811128.533, and the remainder is 0.0005.