We divide 690294 by 86
The aim is to understand the frequency of 86 in 690294.

On to step 1:
If we divide 6 by 86, we get 0 and a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Fetch the next digit (9) from the dividend, attach it to 6 and continue: 69 / 86

Going ahead to step 2:
86 goes into 69 0 times with a remainder of 69.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 69 to get 69.
Take the next digit (0) from the dividend and append it to 69, then repeat: 690 / 86

Let's proceed to step 3:
When dividing 690 by 86, we get 8 with a remainder of 2.
Use 8 as the next digit of our solution. 
Result so far: 8.0
Subtracting 688 from 690 leaves us with 2.
Fetch the next digit (2) from the dividend, attach it to 2 and continue: 22 / 86

Moving on to step 4:
If we divide 22 by 86, we get 0 and a remainder of 22.
Put 0 as the next digit of the answer. 
Result so far: 80.0
The remainder is 22 after subtracting 0 from 22.
Include the next digit (9) from the dividend after 22, then repeat: 229 / 86

On to step 5:
If we divide 229 by 86, we get 2 and a remainder of 57.
Write down 2 as next digit of the result. 
Result so far: 802.0
Subtract 172 from 229 to get 57.
Bring next digit (4) of the dividend behind the 57 and repeat the process: 574 / 86

Advancing to step 6:
When dividing 574 by 86, we get 6 with a remainder of 58.
Record the quotient 6 as the next digit in the result. 
Result so far: 8026.0
Subtracting 516 from 574 leaves us 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.

Step 7:
When dividing 580 by 86, we get 6 with a remainder of 64.
The next digit of our result is 6. 
Result so far: 8026.6
Subtracting 516 from 580 leaves us 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.

Going ahead to step 8:
86 can be fit into 640 7 times, resulting in a remainder of 38.
Put 7 as the next digit of the answer. 
Result so far: 8026.67
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.

Step 9:
86 can be fit into 380 4 times, resulting in a remainder of 36.
Record the quotient 4 as the next digit in the result. 
Result so far: 8026.674
If we subtract 344 from 380, we get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Going ahead to step 10:
86 can be fit into 360 4 times, resulting in a remainder of 16.
Use 4 as the next digit of our solution. 
Result so far: 8026.6744
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.

Our division results in 8026.6744 with a remaining 0.00016.