881860 ÷ 15 
The aim is to understand the frequency of 15 in 881860.

Let's proceed to step 1:
8 divided by 15 is 0 with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Include the next digit (8) from the dividend after 8, then repeat: 88 / 15

Moving on to step 2:
88 divided by 15 is 5 with a remainder of 13.
The next digit of our result is 5. 
Result so far: 5.0
Subtracting 75 from 88 leaves us with 13.
Include the next digit (1) from the dividend after 13, then repeat: 131 / 15

Advancing to step 3:
The number 15 fits into 131 8 times, leaving a remainder of 11.
Use 8 as the next digit of our solution. 
Result so far: 58.0
The remainder is 11 after subtracting 120 from 131.
Grab the next digit (8) from the dividend, add it to 11, then carry on: 118 / 15

Going ahead to step 4:
118 divided by 15 is 7 with a remainder of 13.
The next digit of our result is 7. 
Result so far: 587.0
Subtract 105 from 118 to get 13.
Bring next digit (6) of the dividend behind the 13 and repeat the process: 136 / 15

On to step 5:
When dividing 136 by 15, we get 9 with a remainder of 1.
Use 9 as the next digit of our solution. 
Result so far: 5879.0
Subtract 135 from 136 to get 1.
Take the next digit (0) from the dividend and append it to 1, then repeat: 10 / 15

Moving on to step 6:
If we divide 10 by 15, we get 0 and a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 58790.0
If we take 0 away from 10, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 7:
When dividing 100 by 15, we get 6 with a remainder of 10.
The number 6 becomes the next digit in our result. 
Result so far: 58790.6
Subtract 90 from 100 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 8:
15 goes into 100 6 times with a remainder of 10.
Write down 6 as next digit of the result. 
Result so far: 58790.66
The remainder is 10 after subtracting 90 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

The quotient of the division is 58790.66, and the remainder is 0.01.