We look at the division of 902876 by 15 
The aim is to understand the frequency of 15 in 902876.

Going ahead to step 1:
The number 15 fits into 9 0 times, leaving a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Grab the next digit (0) from the dividend, add it to 9, then carry on: 90 / 15

Let's proceed to step 2:
15 goes into 90 6 times with a remainder of 0.
The next digit of our result is 6. 
Result so far: 6.0
Deduct 90 from 90 and we're left with 0.
Take the next digit (2) from the dividend and append it to 0, then repeat: 2 / 15

Advancing to step 3:
15 can be fit into 2 0 times, resulting in a remainder of 2.
The next digit of our result is 0. 
Result so far: 60.0
Subtracting 0 from 2 leaves us with 2.
Include the next digit (8) from the dividend after 2, then repeat: 28 / 15

Moving on to step 4:
The number 15 fits into 28 1 times, leaving a remainder of 13.
The next digit of our result is 1. 
Result so far: 601.0
The remainder is 13 after subtracting 15 from 28.
Append the next digit (7) from the dividend to 13 and continue with: 137 / 15

Advancing to step 5:
When dividing 137 by 15, we get 9 with a remainder of 2.
The next digit of our result is 9. 
Result so far: 6019.0
If we take 135 away from 137, we end up with 2.
Fetch the next digit (6) from the dividend, attach it to 2 and continue: 26 / 15

Let's proceed to step 6:
15 can be fit into 26 1 times, resulting in a remainder of 11.
Write down 1 as next digit of the result. 
Result so far: 60191.0
Deduct 15 from 26 and we're left 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.

Moving on to step 7:
15 can be fit into 110 7 times, resulting in a remainder of 5.
Write down 7 as next digit of the result. 
Result so far: 60191.7
Subtract 105 from 110 to 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.

Going ahead to step 8:
15 goes into 50 3 times with a remainder of 5.
The next digit of our result is 3. 
Result so far: 60191.73
Subtract 45 from 50 to 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.

Step 9:
15 can be fit into 50 3 times, resulting in a remainder of 5.
The next digit of our result is 3. 
Result so far: 60191.733
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 60191.733 with a remaining 0.0005.