We're dividing 338809 by 26 
The aim is to understand the frequency of 26 in 338809.

Step 1:
If we divide 3 by 26, we get 0 and a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Grab the next digit (3) from the dividend, add it to 3, then carry on: 33 / 26

Moving on to step 2:
The number 26 fits into 33 1 times, leaving a remainder of 7.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 26 away from 33, we end up with 7.
Grab the next digit (8) from the dividend, add it to 7, then carry on: 78 / 26

Advancing to step 3:
26 can be fit into 78 3 times, resulting in a remainder of 0.
Record the quotient 3 as the next digit in the result. 
Result so far: 13.0
The remainder is 0 after subtracting 78 from 78.
Fetch the next digit (8) from the dividend, attach it to 0 and continue: 8 / 26

On to step 4:
When dividing 8 by 26, we get 0 with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 130.0
Subtract 0 from 8 to get 8.
Append the next digit (0) from the dividend to 8 and continue with: 80 / 26

Advancing to step 5:
26 can be fit into 80 3 times, resulting in a remainder of 2.
Put 3 as the next digit of the answer. 
Result so far: 1303.0
Subtracting 78 from 80 leaves us with 2.
Include the next digit (9) from the dividend after 2, then repeat: 29 / 26

Advancing to step 6:
26 goes into 29 1 times with a remainder of 3.
Record the quotient 1 as the next digit in the result. 
Result so far: 13031.0
If we subtract 26 from 29, we get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 7:
26 goes into 30 1 times with a remainder of 4.
Write down 1 as next digit of the result. 
Result so far: 13031.1
If we subtract 26 from 30, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 8:
40 divided by 26 is 1 with a remainder of 14.
The number 1 becomes the next digit in our result. 
Result so far: 13031.11
Subtract 26 from 40 to get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

The final result is 13031.11 with a remainder of 0.014.