We look at the division of 517315 by 86 
The aim is to understand the frequency of 86 in 517315.

Going ahead to step 1:
86 goes into 5 0 times with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Append the next digit (1) from the dividend to 5 and continue with: 51 / 86

Let's proceed to step 2:
The number 86 fits into 51 0 times, leaving a remainder of 51.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 51, we end up with 51.
Append the next digit (7) from the dividend to 51 and continue with: 517 / 86

On to step 3:
When dividing 517 by 86, we get 6 with a remainder of 1.
Put 6 as the next digit of the answer. 
Result so far: 6.0
Deduct 516 from 517 and we're left with 1.
Bring next digit (3) of the dividend behind the 1 and repeat the process: 13 / 86

Moving on to step 4:
If we divide 13 by 86, we get 0 and a remainder of 13.
Put 0 as the next digit of the answer. 
Result so far: 60.0
Subtracting 0 from 13 leaves us with 13.
Append the next digit (1) from the dividend to 13 and continue with: 131 / 86

Advancing to step 5:
When dividing 131 by 86, we get 1 with a remainder of 45.
Record the quotient 1 as the next digit in the result. 
Result so far: 601.0
Subtracting 86 from 131 leaves us with 45.
Append the next digit (5) from the dividend to 45 and continue with: 455 / 86

Going ahead to step 6:
If we divide 455 by 86, we get 5 and a remainder of 25.
Record the quotient 5 as the next digit in the result. 
Result so far: 6015.0
Subtract 430 from 455 to get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Let's proceed to step 7:
The number 86 fits into 250 2 times, leaving a remainder of 78.
The number 2 becomes the next digit in our result. 
Result so far: 6015.2
If we subtract 172 from 250, we get 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Step 8:
When dividing 780 by 86, we get 9 with a remainder of 6.
Put 9 as the next digit of the answer. 
Result so far: 6015.29
Deduct 774 from 780 and we're left 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.

On to step 9:
86 can be fit into 60 0 times, resulting in a remainder of 60.
The next digit of our result is 0. 
Result so far: 6015.29
Deduct 0 from 60 and we're left with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 10:
600 divided by 86 is 6 with a remainder of 84.
Record the quotient 6 as the next digit in the result. 
Result so far: 6015.2906
The remainder is 84 after subtracting 516 from 600.
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 11:
86 can be fit into 840 9 times, resulting in a remainder of 66.
Use 9 as the next digit of our solution. 
Result so far: 6015.29069
The remainder is 66 after subtracting 774 from 840.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Going ahead to step 12:
86 can be fit into 660 7 times, resulting in a remainder of 58.
The next digit of our result is 7. 
Result so far: 6015.290697
If we take 602 away from 660, we end up 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.

Moving on to step 13:
86 can be fit into 580 6 times, resulting in a remainder of 64.
Write down 6 as next digit of the result. 
Result so far: 6015.2906976
If we take 516 away from 580, we end up 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.

On to step 14:
The number 86 fits into 640 7 times, leaving a remainder of 38.
Write down 7 as next digit of the result. 
Result so far: 6015.29069767
The remainder is 38 after subtracting 602 from 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

In conclusion, the division gives 6015.29069767 with a balance of 3.8e-08.