We divide 223531 by 85
The aim is to understand the frequency of 85 in 223531.

Moving on to step 1:
85 can be fit into 2 0 times, resulting in a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Fetch the next digit (2) from the dividend, attach it to 2 and continue: 22 / 85

Advancing to step 2:
When dividing 22 by 85, we get 0 with a remainder of 22.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 22, we end up with 22.
Bring next digit (3) of the dividend behind the 22 and repeat the process: 223 / 85

Moving on to step 3:
If we divide 223 by 85, we get 2 and a remainder of 53.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Deduct 170 from 223 and we're left with 53.
Take the next digit (5) from the dividend and append it to 53, then repeat: 535 / 85

On to step 4:
85 goes into 535 6 times with a remainder of 25.
The number 6 becomes the next digit in our result. 
Result so far: 26.0
Subtracting 510 from 535 leaves us with 25.
Bring next digit (3) of the dividend behind the 25 and repeat the process: 253 / 85

Let's proceed to step 5:
If we divide 253 by 85, we get 2 and a remainder of 83.
Put 2 as the next digit of the answer. 
Result so far: 262.0
If we take 170 away from 253, we end up with 83.
Fetch the next digit (1) from the dividend, attach it to 83 and continue: 831 / 85

Advancing to step 6:
The number 85 fits into 831 9 times, leaving a remainder of 66.
The next digit of our result is 9. 
Result so far: 2629.0
Subtracting 765 from 831 leaves us with 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Advancing to step 7:
85 can be fit into 660 7 times, resulting in a remainder of 65.
Use 7 as the next digit of our solution. 
Result so far: 2629.7
If we subtract 595 from 660, we get 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Going ahead to step 8:
If we divide 650 by 85, we get 7 and a remainder of 55.
The number 7 becomes the next digit in our result. 
Result so far: 2629.77
Subtract 595 from 650 to get 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

The final result is 2629.77 with a remainder of 0.055.