717638 ÷ 86 
The aim is to understand the frequency of 86 in 717638.

On to step 1:
86 can be fit into 7 0 times, resulting in a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Fetch the next digit (1) from the dividend, attach it to 7 and continue: 71 / 86

Step 2:
The number 86 fits into 71 0 times, leaving a remainder of 71.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 71 and we're left with 71.
Grab the next digit (7) from the dividend, add it to 71, then carry on: 717 / 86

Going ahead to step 3:
If we divide 717 by 86, we get 8 and a remainder of 29.
Write down 8 as next digit of the result. 
Result so far: 8.0
Deduct 688 from 717 and we're left with 29.
Append the next digit (6) from the dividend to 29 and continue with: 296 / 86

Moving on to step 4:
If we divide 296 by 86, we get 3 and a remainder of 38.
The next digit of our result is 3. 
Result so far: 83.0
Deduct 258 from 296 and we're left with 38.
Grab the next digit (3) from the dividend, add it to 38, then carry on: 383 / 86

Moving on to step 5:
86 goes into 383 4 times with a remainder of 39.
The next digit of our result is 4. 
Result so far: 834.0
If we subtract 344 from 383, we get 39.
Grab the next digit (8) from the dividend, add it to 39, then carry on: 398 / 86

Step 6:
86 can be fit into 398 4 times, resulting in a remainder of 54.
Write down 4 as next digit of the result. 
Result so far: 8344.0
The remainder is 54 after subtracting 344 from 398.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Going ahead to step 7:
86 goes into 540 6 times with a remainder of 24.
The next digit of our result is 6. 
Result so far: 8344.6
If we subtract 516 from 540, we get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Going ahead to step 8:
The number 86 fits into 240 2 times, leaving a remainder of 68.
Use 2 as the next digit of our solution. 
Result so far: 8344.62
If we take 172 away from 240, we end up with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Let's proceed to step 9:
86 can be fit into 680 7 times, resulting in a remainder of 78.
Write down 7 as next digit of the result. 
Result so far: 8344.627
If we take 602 away from 680, we end up with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Going ahead to step 10:
If we divide 780 by 86, we get 9 and a remainder of 6.
The number 9 becomes the next digit in our result. 
Result so far: 8344.6279
Subtracting 774 from 780 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 11:
86 can be fit into 60 0 times, resulting in a remainder of 60.
Record the quotient 0 as the next digit in the result. 
Result so far: 8344.6279
Subtract 0 from 60 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Going ahead to step 12:
600 divided by 86 is 6 with a remainder of 84.
Use 6 as the next digit of our solution. 
Result so far: 8344.627906
Subtracting 516 from 600 leaves us with 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Let's proceed to step 13:
If we divide 840 by 86, we get 9 and a remainder of 66.
The next digit of our result is 9. 
Result so far: 8344.6279069
Deduct 774 from 840 and we're left with 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Step 14:
If we divide 660 by 86, we get 7 and a remainder of 58.
The number 7 becomes the next digit in our result. 
Result so far: 8344.62790697
Deduct 602 from 660 and we're left with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

The final outcome is 8344.62790697, with a leftover of 5.8e-08.