We look at the division of 80822150 by 15 
The aim is to understand the frequency of 15 in 80822150.

Let's proceed to step 1:
15 goes into 8 0 times with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Bring next digit (0) of the dividend behind the 8 and repeat the process: 80 / 15

Step 2:
15 goes into 80 5 times with a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 5.0
If we subtract 75 from 80, we get 5.
Bring next digit (8) of the dividend behind the 5 and repeat the process: 58 / 15

Let's proceed to step 3:
15 goes into 58 3 times with a remainder of 13.
Use 3 as the next digit of our solution. 
Result so far: 53.0
If we subtract 45 from 58, we get 13.
Include the next digit (2) from the dividend after 13, then repeat: 132 / 15

Let's proceed to step 4:
If we divide 132 by 15, we get 8 and a remainder of 12.
The number 8 becomes the next digit in our result. 
Result so far: 538.0
Subtract 120 from 132 to get 12.
Include the next digit (2) from the dividend after 12, then repeat: 122 / 15

On to step 5:
15 goes into 122 8 times with a remainder of 2.
The next digit of our result is 8. 
Result so far: 5388.0
If we subtract 120 from 122, we get 2.
Include the next digit (1) from the dividend after 2, then repeat: 21 / 15

Moving on to step 6:
15 goes into 21 1 times with a remainder of 6.
The next digit of our result is 1. 
Result so far: 53881.0
The remainder is 6 after subtracting 15 from 21.
Grab the next digit (5) from the dividend, add it to 6, then carry on: 65 / 15

Let's proceed to step 7:
15 can be fit into 65 4 times, resulting in a remainder of 5.
The next digit of our result is 4. 
Result so far: 538814.0
Subtracting 60 from 65 leaves us with 5.
Fetch the next digit (0) from the dividend, attach it to 5 and continue: 50 / 15

On to step 8:
50 divided by 15 is 3 with a remainder of 5.
Put 3 as the next digit of the answer. 
Result so far: 5388143.0
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.

On to step 9:
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: 5388143.3
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.

Going ahead to 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: 5388143.33
If we subtract 45 from 50, 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.

The final result is 5388143.33 with a remainder of 0.005.