We divide 3299 by 15
The aim is to understand the frequency of 15 in 3299.

Moving on to step 1:
When dividing 3 by 15, we get 0 with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Fetch the next digit (2) from the dividend, attach it to 3 and continue: 32 / 15

Let's proceed to step 2:
15 goes into 32 2 times with a remainder of 2.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Subtract 30 from 32 to get 2.
Grab the next digit (9) from the dividend, add it to 2, then carry on: 29 / 15

Let's proceed to step 3:
29 divided by 15 is 1 with a remainder of 14.
The next digit of our result is 1. 
Result so far: 21.0
Deduct 15 from 29 and we're left with 14.
Append the next digit (9) from the dividend to 14 and continue with: 149 / 15

On to step 4:
If we divide 149 by 15, we get 9 and a remainder of 14.
The number 9 becomes the next digit in our result. 
Result so far: 219.0
If we take 135 away from 149, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Let's proceed to step 5:
If we divide 140 by 15, we get 9 and a remainder of 5.
The number 9 becomes the next digit in our result. 
Result so far: 219.9
Deduct 135 from 140 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.

Moving on to step 6:
15 goes into 50 3 times with a remainder of 5.
The number 3 becomes the next digit in our result. 
Result so far: 219.93
The remainder is 5 after subtracting 45 from 50.
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 7:
The number 15 fits into 50 3 times, leaving a remainder of 5.
Put 3 as the next digit of the answer. 
Result so far: 219.933
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.

The final result is 219.933 with a remainder of 0.0005.