We divide 824590 by 86
The aim is to understand the frequency of 86 in 824590.

On to step 1:
If we divide 8 by 86, we get 0 and a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Append the next digit (2) from the dividend to 8 and continue with: 82 / 86

Let's proceed to step 2:
When dividing 82 by 86, we get 0 with a remainder of 82.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 82 and we're left with 82.
Append the next digit (4) from the dividend to 82 and continue with: 824 / 86

Advancing to step 3:
The number 86 fits into 824 9 times, leaving a remainder of 50.
Record the quotient 9 as the next digit in the result. 
Result so far: 9.0
If we take 774 away from 824, we end up with 50.
Bring next digit (5) of the dividend behind the 50 and repeat the process: 505 / 86

Advancing to step 4:
86 goes into 505 5 times with a remainder of 75.
Write down 5 as next digit of the result. 
Result so far: 95.0
If we subtract 430 from 505, we get 75.
Grab the next digit (9) from the dividend, add it to 75, then carry on: 759 / 86

Going ahead to step 5:
The number 86 fits into 759 8 times, leaving a remainder of 71.
Use 8 as the next digit of our solution. 
Result so far: 958.0
Deduct 688 from 759 and we're left with 71.
Bring next digit (0) of the dividend behind the 71 and repeat the process: 710 / 86

Moving on to step 6:
If we divide 710 by 86, we get 8 and a remainder of 22.
The number 8 becomes the next digit in our result. 
Result so far: 9588.0
If we take 688 away from 710, we end up with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Step 7:
When dividing 220 by 86, we get 2 with a remainder of 48.
Record the quotient 2 as the next digit in the result. 
Result so far: 9588.2
Deduct 172 from 220 and we're left with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Advancing to step 8:
480 divided by 86 is 5 with a remainder of 50.
Record the quotient 5 as the next digit in the result. 
Result so far: 9588.25
The remainder is 50 after subtracting 430 from 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Advancing to step 9:
86 goes into 500 5 times with a remainder of 70.
Write down 5 as next digit of the result. 
Result so far: 9588.255
Deduct 430 from 500 and we're left with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

The final outcome is 9588.255, with a leftover of 0.007.