We look at the division of 829458 by 15 
The aim is to understand the frequency of 15 in 829458.

Moving on to step 1:
15 goes into 8 0 times with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Include the next digit (2) from the dividend after 8, then repeat: 82 / 15

Advancing to step 2:
The number 15 fits into 82 5 times, leaving a remainder of 7.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
Subtracting 75 from 82 leaves us with 7.
Include the next digit (9) from the dividend after 7, then repeat: 79 / 15

Advancing to step 3:
The number 15 fits into 79 5 times, leaving a remainder of 4.
The next digit of our result is 5. 
Result so far: 55.0
If we subtract 75 from 79, we get 4.
Take the next digit (4) from the dividend and append it to 4, then repeat: 44 / 15

Moving on to step 4:
The number 15 fits into 44 2 times, leaving a remainder of 14.
The number 2 becomes the next digit in our result. 
Result so far: 552.0
If we take 30 away from 44, we end up with 14.
Include the next digit (5) from the dividend after 14, then repeat: 145 / 15

Moving on to step 5:
145 divided by 15 is 9 with a remainder of 10.
The number 9 becomes the next digit in our result. 
Result so far: 5529.0
Deduct 135 from 145 and we're left with 10.
Append the next digit (8) from the dividend to 10 and continue with: 108 / 15

On to step 6:
15 goes into 108 7 times with a remainder of 3.
The number 7 becomes the next digit in our result. 
Result so far: 55297.0
If we subtract 105 from 108, we get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Let's proceed to step 7:
When dividing 30 by 15, we get 2 with a remainder of 0.
Put 2 as the next digit of the answer. 
Result so far: 55297.2
Subtracting 30 from 30 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 8:
0 divided by 15 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 55297.2
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 9:
15 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 55297.2
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 55297.2 with a remaining 0.0.