Let's divide 328586 by 15
The aim is to understand the frequency of 15 in 328586.

Moving on to step 1:
15 goes into 3 0 times with a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Append the next digit (2) from the dividend to 3 and continue with: 32 / 15

Going ahead to step 2:
When dividing 32 by 15, we get 2 with a remainder of 2.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Subtract 30 from 32 to get 2.
Fetch the next digit (8) from the dividend, attach it to 2 and continue: 28 / 15

Advancing to step 3:
28 divided by 15 is 1 with a remainder of 13.
Write down 1 as next digit of the result. 
Result so far: 21.0
Subtract 15 from 28 to get 13.
Bring next digit (5) of the dividend behind the 13 and repeat the process: 135 / 15

Moving on to step 4:
15 goes into 135 9 times with a remainder of 0.
Put 9 as the next digit of the answer. 
Result so far: 219.0
Subtract 135 from 135 to get 0.
Include the next digit (8) from the dividend after 0, then repeat: 8 / 15

Step 5:
The number 15 fits into 8 0 times, leaving a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 2190.0
If we take 0 away from 8, we end up with 8.
Fetch the next digit (6) from the dividend, attach it to 8 and continue: 86 / 15

Advancing to step 6:
15 goes into 86 5 times with a remainder of 11.
Put 5 as the next digit of the answer. 
Result so far: 21905.0
If we take 75 away from 86, we end up with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Going ahead to step 7:
15 can be fit into 110 7 times, resulting in a remainder of 5.
The next digit of our result is 7. 
Result so far: 21905.7
Deduct 105 from 110 and we're left 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.

Let's proceed to step 8:
15 goes into 50 3 times with a remainder of 5.
Put 3 as the next digit of the answer. 
Result so far: 21905.73
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.

Advancing to step 9:
If we divide 50 by 15, we get 3 and a remainder of 5.
Write down 3 as next digit of the result. 
Result so far: 21905.733
Deduct 45 from 50 and we're left 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.

Our division results in 21905.733 with a remaining 0.0005.