We look at the division of 871823 by 35 
The aim is to understand the frequency of 35 in 871823.

Advancing to step 1:
If we divide 8 by 35, we get 0 and a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Append the next digit (7) from the dividend to 8 and continue with: 87 / 35

Advancing to step 2:
35 can be fit into 87 2 times, resulting in a remainder of 17.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Subtracting 70 from 87 leaves us with 17.
Include the next digit (1) from the dividend after 17, then repeat: 171 / 35

On to step 3:
When dividing 171 by 35, we get 4 with a remainder of 31.
The next digit of our result is 4. 
Result so far: 24.0
Subtract 140 from 171 to get 31.
Append the next digit (8) from the dividend to 31 and continue with: 318 / 35

Going ahead to step 4:
The number 35 fits into 318 9 times, leaving a remainder of 3.
Use 9 as the next digit of our solution. 
Result so far: 249.0
The remainder is 3 after subtracting 315 from 318.
Bring next digit (2) of the dividend behind the 3 and repeat the process: 32 / 35

Let's proceed to step 5:
35 goes into 32 0 times with a remainder of 32.
The number 0 becomes the next digit in our result. 
Result so far: 2490.0
Deduct 0 from 32 and we're left with 32.
Grab the next digit (3) from the dividend, add it to 32, then carry on: 323 / 35

Advancing to step 6:
35 goes into 323 9 times with a remainder of 8.
The next digit of our result is 9. 
Result so far: 24909.0
If we take 315 away from 323, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 7:
35 can be fit into 80 2 times, resulting in a remainder of 10.
Use 2 as the next digit of our solution. 
Result so far: 24909.2
Deduct 70 from 80 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 8:
The number 35 fits into 100 2 times, leaving a remainder of 30.
Put 2 as the next digit of the answer. 
Result so far: 24909.22
The remainder is 30 after subtracting 70 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

The final result is 24909.22 with a remainder of 0.03.