880776 divided by 15 
The aim is to understand the frequency of 15 in 880776.

Step 1:
When dividing 8 by 15, we get 0 with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Take the next digit (8) from the dividend and append it to 8, then repeat: 88 / 15

Step 2:
15 goes into 88 5 times with a remainder of 13.
The next digit of our result is 5. 
Result so far: 5.0
Subtract 75 from 88 to get 13.
Take the next digit (0) from the dividend and append it to 13, then repeat: 130 / 15

Going ahead to step 3:
If we divide 130 by 15, we get 8 and a remainder of 10.
Record the quotient 8 as the next digit in the result. 
Result so far: 58.0
Subtract 120 from 130 to get 10.
Grab the next digit (7) from the dividend, add it to 10, then carry on: 107 / 15

Step 4:
When dividing 107 by 15, we get 7 with a remainder of 2.
The number 7 becomes the next digit in our result. 
Result so far: 587.0
Subtracting 105 from 107 leaves us with 2.
Include the next digit (7) from the dividend after 2, then repeat: 27 / 15

Moving on to step 5:
The number 15 fits into 27 1 times, leaving a remainder of 12.
Use 1 as the next digit of our solution. 
Result so far: 5871.0
The remainder is 12 after subtracting 15 from 27.
Include the next digit (6) from the dividend after 12, then repeat: 126 / 15

Advancing to step 6:
The number 15 fits into 126 8 times, leaving a remainder of 6.
Record the quotient 8 as the next digit in the result. 
Result so far: 58718.0
Subtract 120 from 126 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 7:
The number 15 fits into 60 4 times, leaving a remainder of 0.
Use 4 as the next digit of our solution. 
Result so far: 58718.4
Subtract 60 from 60 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 8:
When dividing 0 by 15, we get 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 58718.4
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 9:
0 divided by 15 is 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 58718.4
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 58718.4 with a remaining 0.0.