Let's divide 575164 by 15
The aim is to understand the frequency of 15 in 575164.

Let's proceed to step 1:
15 can be fit into 5 0 times, resulting in a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Take the next digit (7) from the dividend and append it to 5, then repeat: 57 / 15

Going ahead to step 2:
The number 15 fits into 57 3 times, leaving a remainder of 12.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
If we take 45 away from 57, we end up with 12.
Take the next digit (5) from the dividend and append it to 12, then repeat: 125 / 15

Let's proceed to step 3:
125 divided by 15 is 8 with a remainder of 5.
Use 8 as the next digit of our solution. 
Result so far: 38.0
If we subtract 120 from 125, we get 5.
Append the next digit (1) from the dividend to 5 and continue with: 51 / 15

Step 4:
15 goes into 51 3 times with a remainder of 6.
Record the quotient 3 as the next digit in the result. 
Result so far: 383.0
The remainder is 6 after subtracting 45 from 51.
Take the next digit (6) from the dividend and append it to 6, then repeat: 66 / 15

On to step 5:
15 goes into 66 4 times with a remainder of 6.
Write down 4 as next digit of the result. 
Result so far: 3834.0
The remainder is 6 after subtracting 60 from 66.
Include the next digit (4) from the dividend after 6, then repeat: 64 / 15

Moving on to step 6:
If we divide 64 by 15, we get 4 and a remainder of 4.
The number 4 becomes the next digit in our result. 
Result so far: 38344.0
Subtract 60 from 64 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 7:
If we divide 40 by 15, we get 2 and a remainder of 10.
Put 2 as the next digit of the answer. 
Result so far: 38344.2
Deduct 30 from 40 and we're left 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:
15 can be fit into 100 6 times, resulting in a remainder of 10.
Record the quotient 6 as the next digit in the result. 
Result so far: 38344.26
The remainder is 10 after subtracting 90 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 9:
When dividing 100 by 15, we get 6 with a remainder of 10.
Record the quotient 6 as the next digit in the result. 
Result so far: 38344.266
Subtracting 90 from 100 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.

The final result is 38344.266 with a remainder of 0.001.