717992 ÷ 86 
The aim is to understand the frequency of 86 in 717992.

Step 1:
If we divide 7 by 86, we get 0 and a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Include the next digit (1) from the dividend after 7, then repeat: 71 / 86

On to step 2:
71 divided by 86 is 0 with a remainder of 71.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 71 leaves us with 71.
Append the next digit (7) from the dividend to 71 and continue with: 717 / 86

Moving on to step 3:
When dividing 717 by 86, we get 8 with a remainder of 29.
Write down 8 as next digit of the result. 
Result so far: 8.0
Subtracting 688 from 717 leaves us with 29.
Grab the next digit (9) from the dividend, add it to 29, then carry on: 299 / 86

Going ahead to step 4:
299 divided by 86 is 3 with a remainder of 41.
The next digit of our result is 3. 
Result so far: 83.0
If we subtract 258 from 299, we get 41.
Take the next digit (9) from the dividend and append it to 41, then repeat: 419 / 86

Step 5:
86 can be fit into 419 4 times, resulting in a remainder of 75.
The number 4 becomes the next digit in our result. 
Result so far: 834.0
Deduct 344 from 419 and we're left with 75.
Append the next digit (2) from the dividend to 75 and continue with: 752 / 86

Advancing to step 6:
86 goes into 752 8 times with a remainder of 64.
The next digit of our result is 8. 
Result so far: 8348.0
Deduct 688 from 752 and we're left with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Advancing to step 7:
If we divide 640 by 86, we get 7 and a remainder of 38.
Use 7 as the next digit of our solution. 
Result so far: 8348.7
If we subtract 602 from 640, we get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Let's proceed to step 8:
86 goes into 380 4 times with a remainder of 36.
Record the quotient 4 as the next digit in the result. 
Result so far: 8348.74
Subtracting 344 from 380 leaves us with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Moving on to step 9:
86 can be fit into 360 4 times, resulting in a remainder of 16.
The number 4 becomes the next digit in our result. 
Result so far: 8348.744
If we subtract 344 from 360, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

In conclusion, the division gives 8348.744 with a balance of 0.0016.