We look at the division of 551749 by 86 
The aim is to understand the frequency of 86 in 551749.

Moving on to step 1:
The number 86 fits into 5 0 times, leaving a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Append the next digit (5) from the dividend to 5 and continue with: 55 / 86

Step 2:
55 divided by 86 is 0 with a remainder of 55.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 55, we end up with 55.
Take the next digit (1) from the dividend and append it to 55, then repeat: 551 / 86

On to step 3:
551 divided by 86 is 6 with a remainder of 35.
Record the quotient 6 as the next digit in the result. 
Result so far: 6.0
If we subtract 516 from 551, we get 35.
Bring next digit (7) of the dividend behind the 35 and repeat the process: 357 / 86

Moving on to step 4:
357 divided by 86 is 4 with a remainder of 13.
Put 4 as the next digit of the answer. 
Result so far: 64.0
Subtracting 344 from 357 leaves us with 13.
Include the next digit (4) from the dividend after 13, then repeat: 134 / 86

Step 5:
86 goes into 134 1 times with a remainder of 48.
Use 1 as the next digit of our solution. 
Result so far: 641.0
Subtracting 86 from 134 leaves us with 48.
Grab the next digit (9) from the dividend, add it to 48, then carry on: 489 / 86

On to step 6:
86 goes into 489 5 times with a remainder of 59.
The number 5 becomes the next digit in our result. 
Result so far: 6415.0
Subtracting 430 from 489 leaves us with 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Going ahead to step 7:
590 divided by 86 is 6 with a remainder of 74.
The number 6 becomes the next digit in our result. 
Result so far: 6415.6
Subtracting 516 from 590 leaves us with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Moving on to step 8:
86 goes into 740 8 times with a remainder of 52.
Write down 8 as next digit of the result. 
Result so far: 6415.68
Subtracting 688 from 740 leaves us with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Going ahead to step 9:
86 can be fit into 520 6 times, resulting in a remainder of 4.
Record the quotient 6 as the next digit in the result. 
Result so far: 6415.686
Subtract 516 from 520 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 10:
When dividing 40 by 86, we get 0 with a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 6415.686
Subtract 0 from 40 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 11:
The number 86 fits into 400 4 times, leaving a remainder of 56.
Write down 4 as next digit of the result. 
Result so far: 6415.68604
If we subtract 344 from 400, we get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Moving on to step 12:
The number 86 fits into 560 6 times, leaving a remainder of 44.
Put 6 as the next digit of the answer. 
Result so far: 6415.686046
Subtracting 516 from 560 leaves us with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Let's proceed to step 13:
86 goes into 440 5 times with a remainder of 10.
Record the quotient 5 as the next digit in the result. 
Result so far: 6415.6860465
Subtract 430 from 440 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.

Let's proceed to step 14:
When dividing 100 by 86, we get 1 with a remainder of 14.
The number 1 becomes the next digit in our result. 
Result so far: 6415.68604651
Subtract 86 from 100 to get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

After the division, we end up with 6415.68604651 and a remainder of 1.4e-08.