We're dividing 85221 by 35 
The aim is to understand the frequency of 35 in 85221.

Let's proceed to step 1:
When dividing 8 by 35, we get 0 with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Fetch the next digit (5) from the dividend, attach it to 8 and continue: 85 / 35

Advancing to step 2:
35 can be fit into 85 2 times, resulting in a remainder of 15.
The next digit of our result is 2. 
Result so far: 2.0
The remainder is 15 after subtracting 70 from 85.
Grab the next digit (2) from the dividend, add it to 15, then carry on: 152 / 35

Going ahead to step 3:
35 goes into 152 4 times with a remainder of 12.
Use 4 as the next digit of our solution. 
Result so far: 24.0
Subtract 140 from 152 to get 12.
Append the next digit (2) from the dividend to 12 and continue with: 122 / 35

Advancing to step 4:
The number 35 fits into 122 3 times, leaving a remainder of 17.
Write down 3 as next digit of the result. 
Result so far: 243.0
Subtracting 105 from 122 leaves us with 17.
Append the next digit (1) from the dividend to 17 and continue with: 171 / 35

Moving on to step 5:
35 can be fit into 171 4 times, resulting in a remainder of 31.
The number 4 becomes the next digit in our result. 
Result so far: 2434.0
If we subtract 140 from 171, we get 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Let's proceed to step 6:
310 divided by 35 is 8 with a remainder of 30.
The number 8 becomes the next digit in our result. 
Result so far: 2434.8
If we subtract 280 from 310, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 7:
35 can be fit into 300 8 times, resulting in a remainder of 20.
Use 8 as the next digit of our solution. 
Result so far: 2434.88
If we subtract 280 from 300, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

The final result is 2434.88 with a remainder of 0.02.