917824 divided by 87 
The aim is to understand the frequency of 87 in 917824.

Step 1:
87 goes into 9 0 times with a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Fetch the next digit (1) from the dividend, attach it to 9 and continue: 91 / 87

Moving on to step 2:
When dividing 91 by 87, we get 1 with a remainder of 4.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 87 from 91, we get 4.
Bring next digit (7) of the dividend behind the 4 and repeat the process: 47 / 87

Let's proceed to step 3:
If we divide 47 by 87, we get 0 and a remainder of 47.
Put 0 as the next digit of the answer. 
Result so far: 10.0
Subtracting 0 from 47 leaves us with 47.
Grab the next digit (8) from the dividend, add it to 47, then carry on: 478 / 87

Advancing to step 4:
The number 87 fits into 478 5 times, leaving a remainder of 43.
The next digit of our result is 5. 
Result so far: 105.0
Deduct 435 from 478 and we're left with 43.
Include the next digit (2) from the dividend after 43, then repeat: 432 / 87

Let's proceed to step 5:
When dividing 432 by 87, we get 4 with a remainder of 84.
Put 4 as the next digit of the answer. 
Result so far: 1054.0
Subtract 348 from 432 to get 84.
Take the next digit (4) from the dividend and append it to 84, then repeat: 844 / 87

Going ahead to step 6:
87 goes into 844 9 times with a remainder of 61.
The number 9 becomes the next digit in our result. 
Result so far: 10549.0
The remainder is 61 after subtracting 783 from 844.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

On to step 7:
The number 87 fits into 610 7 times, leaving a remainder of 1.
Put 7 as the next digit of the answer. 
Result so far: 10549.7
If we take 609 away from 610, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 8:
The number 87 fits into 10 0 times, leaving a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 10549.7
The remainder is 10 after subtracting 0 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 9:
100 divided by 87 is 1 with a remainder of 13.
Record the quotient 1 as the next digit in the result. 
Result so far: 10549.701
Subtract 87 from 100 to get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Let's proceed to step 10:
87 can be fit into 130 1 times, resulting in a remainder of 43.
Use 1 as the next digit of our solution. 
Result so far: 10549.7011
Deduct 87 from 130 and we're left with 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

The final result is 10549.7011 with a remainder of 0.00043.