We divide 579520 by 86
The aim is to understand the frequency of 86 in 579520.

Advancing to step 1:
5 divided by 86 is 0 with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Grab the next digit (7) from the dividend, add it to 5, then carry on: 57 / 86

On to step 2:
If we divide 57 by 86, we get 0 and a remainder of 57.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 57 to get 57.
Bring next digit (9) of the dividend behind the 57 and repeat the process: 579 / 86

Moving on to step 3:
86 can be fit into 579 6 times, resulting in a remainder of 63.
Put 6 as the next digit of the answer. 
Result so far: 6.0
If we subtract 516 from 579, we get 63.
Fetch the next digit (5) from the dividend, attach it to 63 and continue: 635 / 86

Moving on to step 4:
635 divided by 86 is 7 with a remainder of 33.
The number 7 becomes the next digit in our result. 
Result so far: 67.0
If we subtract 602 from 635, we get 33.
Grab the next digit (2) from the dividend, add it to 33, then carry on: 332 / 86

Going ahead to step 5:
When dividing 332 by 86, we get 3 with a remainder of 74.
Use 3 as the next digit of our solution. 
Result so far: 673.0
Subtracting 258 from 332 leaves us with 74.
Bring next digit (0) of the dividend behind the 74 and repeat the process: 740 / 86

On to step 6:
When dividing 740 by 86, we get 8 with a remainder of 52.
Put 8 as the next digit of the answer. 
Result so far: 6738.0
If we subtract 688 from 740, we get 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 7:
The number 86 fits into 520 6 times, leaving a remainder of 4.
Write down 6 as next digit of the result. 
Result so far: 6738.6
If we subtract 516 from 520, we 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.

Let's proceed to step 8:
The number 86 fits into 40 0 times, leaving a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 6738.6
If we take 0 away from 40, we end up with 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 9:
400 divided by 86 is 4 with a remainder of 56.
Write down 4 as next digit of the result. 
Result so far: 6738.604
If we take 344 away from 400, we end up with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

On to step 10:
If we divide 560 by 86, we get 6 and a remainder of 44.
Use 6 as the next digit of our solution. 
Result so far: 6738.6046
Deduct 516 from 560 and we're left 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.

Going ahead to step 11:
86 can be fit into 440 5 times, resulting in a remainder of 10.
Use 5 as the next digit of our solution. 
Result so far: 6738.60465
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.

Step 12:
The number 86 fits into 100 1 times, leaving a remainder of 14.
Use 1 as the next digit of our solution. 
Result so far: 6738.604651
Subtracting 86 from 100 leaves us with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Advancing to step 13:
140 divided by 86 is 1 with a remainder of 54.
Write down 1 as next digit of the result. 
Result so far: 6738.6046511
If we take 86 away from 140, we end up with 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 6738.6046511 and a remainder of 5.4e-07.