We look at the division of 401317 by 26 
The aim is to understand the frequency of 26 in 401317.

Advancing to step 1:
The number 26 fits into 4 0 times, leaving a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Grab the next digit (0) from the dividend, add it to 4, then carry on: 40 / 26

Advancing to step 2:
When dividing 40 by 26, we get 1 with a remainder of 14.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we take 26 away from 40, we end up with 14.
Append the next digit (1) from the dividend to 14 and continue with: 141 / 26

Advancing to step 3:
When dividing 141 by 26, we get 5 with a remainder of 11.
Use 5 as the next digit of our solution. 
Result so far: 15.0
If we take 130 away from 141, we end up with 11.
Grab the next digit (3) from the dividend, add it to 11, then carry on: 113 / 26

Moving on to step 4:
The number 26 fits into 113 4 times, leaving a remainder of 9.
Record the quotient 4 as the next digit in the result. 
Result so far: 154.0
The remainder is 9 after subtracting 104 from 113.
Append the next digit (1) from the dividend to 9 and continue with: 91 / 26

Moving on to step 5:
26 can be fit into 91 3 times, resulting in a remainder of 13.
Record the quotient 3 as the next digit in the result. 
Result so far: 1543.0
If we subtract 78 from 91, we get 13.
Bring next digit (7) of the dividend behind the 13 and repeat the process: 137 / 26

Moving on to step 6:
26 goes into 137 5 times with a remainder of 7.
Use 5 as the next digit of our solution. 
Result so far: 15435.0
The remainder is 7 after subtracting 130 from 137.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Let's proceed to step 7:
26 can be fit into 70 2 times, resulting in a remainder of 18.
Write down 2 as next digit of the result. 
Result so far: 15435.2
If we subtract 52 from 70, we get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Advancing to step 8:
26 can be fit into 180 6 times, resulting in a remainder of 24.
The number 6 becomes the next digit in our result. 
Result so far: 15435.26
Subtracting 156 from 180 leaves us with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Step 9:
26 can be fit into 240 9 times, resulting in a remainder of 6.
The number 9 becomes the next digit in our result. 
Result so far: 15435.269
Deduct 234 from 240 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 10:
The number 26 fits into 60 2 times, leaving a remainder of 8.
Record the quotient 2 as the next digit in the result. 
Result so far: 15435.2692
Subtracting 52 from 60 leaves us 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.

Moving on to step 11:
26 goes into 80 3 times with a remainder of 2.
Put 3 as the next digit of the answer. 
Result so far: 15435.26923
Subtracting 78 from 80 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 12:
When dividing 20 by 26, we get 0 with a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 15435.26923
If we subtract 0 from 20, 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.

Let's proceed to step 13:
26 goes into 200 7 times with a remainder of 18.
The number 7 becomes the next digit in our result. 
Result so far: 15435.2692307
Subtract 182 from 200 to get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Advancing to step 14:
The number 26 fits into 180 6 times, leaving a remainder of 24.
The next digit of our result is 6. 
Result so far: 15435.26923076
Subtract 156 from 180 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

The final outcome is 15435.26923076, with a leftover of 2.4e-08.