We're dividing 569969 by 86 
The aim is to understand the frequency of 86 in 569969.

Moving on to step 1:
86 can be fit into 5 0 times, resulting in a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Take the next digit (6) from the dividend and append it to 5, then repeat: 56 / 86

Step 2:
86 can be fit into 56 0 times, resulting in a remainder of 56.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 56 to get 56.
Include the next digit (9) from the dividend after 56, then repeat: 569 / 86

Going ahead to step 3:
569 divided by 86 is 6 with a remainder of 53.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
Subtract 516 from 569 to get 53.
Bring next digit (9) of the dividend behind the 53 and repeat the process: 539 / 86

On to step 4:
86 goes into 539 6 times with a remainder of 23.
Record the quotient 6 as the next digit in the result. 
Result so far: 66.0
If we take 516 away from 539, we end up with 23.
Take the next digit (6) from the dividend and append it to 23, then repeat: 236 / 86

Step 5:
86 can be fit into 236 2 times, resulting in a remainder of 64.
Put 2 as the next digit of the answer. 
Result so far: 662.0
Subtracting 172 from 236 leaves us with 64.
Append the next digit (9) from the dividend to 64 and continue with: 649 / 86

On to step 6:
86 can be fit into 649 7 times, resulting in a remainder of 47.
Record the quotient 7 as the next digit in the result. 
Result so far: 6627.0
The remainder is 47 after subtracting 602 from 649.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Step 7:
If we divide 470 by 86, we get 5 and a remainder of 40.
The number 5 becomes the next digit in our result. 
Result so far: 6627.5
Subtract 430 from 470 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.

Let's proceed to step 8:
86 can be fit into 400 4 times, resulting in a remainder of 56.
Put 4 as the next digit of the answer. 
Result so far: 6627.54
The remainder is 56 after subtracting 344 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Advancing to step 9:
When dividing 560 by 86, we get 6 with a remainder of 44.
The next digit of our result is 6. 
Result so far: 6627.546
Subtract 516 from 560 to get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Step 10:
86 goes into 440 5 times with a remainder of 10.
Use 5 as the next digit of our solution. 
Result so far: 6627.5465
The remainder is 10 after subtracting 430 from 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 11:
The number 86 fits into 100 1 times, leaving a remainder of 14.
The number 1 becomes the next digit in our result. 
Result so far: 6627.54651
If we subtract 86 from 100, we 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.

On to step 12:
86 goes into 140 1 times with a remainder of 54.
The number 1 becomes the next digit in our result. 
Result so far: 6627.546511
Subtract 86 from 140 to get 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

After the division, we end up with 6627.546511 and a remainder of 5.4e-06.