517832 ÷ 15 
The aim is to understand the frequency of 15 in 517832.

Advancing to step 1:
15 goes into 5 0 times with a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Take the next digit (1) from the dividend and append it to 5, then repeat: 51 / 15

Let's proceed to step 2:
51 divided by 15 is 3 with a remainder of 6.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Subtract 45 from 51 to get 6.
Include the next digit (7) from the dividend after 6, then repeat: 67 / 15

Let's proceed to step 3:
15 goes into 67 4 times with a remainder of 7.
Record the quotient 4 as the next digit in the result. 
Result so far: 34.0
If we take 60 away from 67, we end up with 7.
Append the next digit (8) from the dividend to 7 and continue with: 78 / 15

Advancing to step 4:
If we divide 78 by 15, we get 5 and a remainder of 3.
Write down 5 as next digit of the result. 
Result so far: 345.0
If we subtract 75 from 78, we get 3.
Take the next digit (3) from the dividend and append it to 3, then repeat: 33 / 15

Let's proceed to step 5:
When dividing 33 by 15, we get 2 with a remainder of 3.
Put 2 as the next digit of the answer. 
Result so far: 3452.0
If we take 30 away from 33, we end up with 3.
Include the next digit (2) from the dividend after 3, then repeat: 32 / 15

Step 6:
15 goes into 32 2 times with a remainder of 2.
The next digit of our result is 2. 
Result so far: 34522.0
If we subtract 30 from 32, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 7:
When dividing 20 by 15, we get 1 with a remainder of 5.
Record the quotient 1 as the next digit in the result. 
Result so far: 34522.1
If we take 15 away from 20, we end up 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.

On to step 8:
15 can be fit into 50 3 times, resulting in a remainder of 5.
Record the quotient 3 as the next digit in the result. 
Result so far: 34522.13
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 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: 34522.133
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.

The final result is 34522.133 with a remainder of 0.0005.