575041 divided by 15 
The aim is to understand the frequency of 15 in 575041.

Moving on to step 1:
The number 15 fits into 5 0 times, leaving a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Append the next digit (7) from the dividend to 5 and continue with: 57 / 15

Advancing to step 2:
If we divide 57 by 15, we get 3 and a remainder of 12.
Put 3 as the next digit of the answer. 
Result so far: 3.0
Subtracting 45 from 57 leaves us with 12.
Bring next digit (5) of the dividend behind the 12 and repeat the process: 125 / 15

Moving on to step 3:
The number 15 fits into 125 8 times, leaving a remainder of 5.
The number 8 becomes the next digit in our result. 
Result so far: 38.0
If we take 120 away from 125, we end up with 5.
Append the next digit (0) from the dividend to 5 and continue with: 50 / 15

Step 4:
15 can be fit into 50 3 times, resulting in a remainder of 5.
Use 3 as the next digit of our solution. 
Result so far: 383.0
If we take 45 away from 50, we end up with 5.
Take the next digit (4) from the dividend and append it to 5, then repeat: 54 / 15

Going ahead to step 5:
If we divide 54 by 15, we get 3 and a remainder of 9.
Write down 3 as next digit of the result. 
Result so far: 3833.0
Deduct 45 from 54 and we're left with 9.
Include the next digit (1) from the dividend after 9, then repeat: 91 / 15

Going ahead to step 6:
The number 15 fits into 91 6 times, leaving a remainder of 1.
The number 6 becomes the next digit in our result. 
Result so far: 38336.0
If we take 90 away from 91, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 7:
The number 15 fits into 10 0 times, leaving a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 38336.0
Subtracting 0 from 10 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.

Going ahead to step 8:
The number 15 fits into 100 6 times, leaving a remainder of 10.
The number 6 becomes the next digit in our result. 
Result so far: 38336.06
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.

Let's proceed to step 9:
If we divide 100 by 15, we get 6 and a remainder of 10.
Write down 6 as next digit of the result. 
Result so far: 38336.066
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.

Our division results in 38336.066 with a remaining 0.001.