We look at the division of 812879 by 35 
The aim is to understand the frequency of 35 in 812879.

Let's proceed to step 1:
35 can be fit into 8 0 times, resulting in a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Fetch the next digit (1) from the dividend, attach it to 8 and continue: 81 / 35

Going ahead to step 2:
81 divided by 35 is 2 with a remainder of 11.
Write down 2 as next digit of the result. 
Result so far: 2.0
The remainder is 11 after subtracting 70 from 81.
Fetch the next digit (2) from the dividend, attach it to 11 and continue: 112 / 35

Going ahead to step 3:
35 can be fit into 112 3 times, resulting in a remainder of 7.
Record the quotient 3 as the next digit in the result. 
Result so far: 23.0
If we take 105 away from 112, we end up with 7.
Bring next digit (8) of the dividend behind the 7 and repeat the process: 78 / 35

On to step 4:
35 can be fit into 78 2 times, resulting in a remainder of 8.
Use 2 as the next digit of our solution. 
Result so far: 232.0
If we take 70 away from 78, we end up with 8.
Append the next digit (7) from the dividend to 8 and continue with: 87 / 35

Advancing to step 5:
The number 35 fits into 87 2 times, leaving a remainder of 17.
Record the quotient 2 as the next digit in the result. 
Result so far: 2322.0
If we take 70 away from 87, we end up with 17.
Bring next digit (9) of the dividend behind the 17 and repeat the process: 179 / 35

Moving on to step 6:
35 can be fit into 179 5 times, resulting in a remainder of 4.
Use 5 as the next digit of our solution. 
Result so far: 23225.0
The remainder is 4 after subtracting 175 from 179.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 7:
The number 35 fits into 40 1 times, leaving a remainder of 5.
Write down 1 as next digit of the result. 
Result so far: 23225.1
If we take 35 away from 40, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 8:
50 divided by 35 is 1 with a remainder of 15.
The next digit of our result is 1. 
Result so far: 23225.11
Subtract 35 from 50 to get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Our division results in 23225.11 with a remaining 0.015.