We look at the division of 291019 by 26 
The aim is to understand the frequency of 26 in 291019.

Step 1:
26 can be fit into 2 0 times, resulting in a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Append the next digit (9) from the dividend to 2 and continue with: 29 / 26

On to step 2:
29 divided by 26 is 1 with a remainder of 3.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 3 after subtracting 26 from 29.
Include the next digit (1) from the dividend after 3, then repeat: 31 / 26

Advancing to step 3:
The number 26 fits into 31 1 times, leaving a remainder of 5.
Put 1 as the next digit of the answer. 
Result so far: 11.0
The remainder is 5 after subtracting 26 from 31.
Bring next digit (0) of the dividend behind the 5 and repeat the process: 50 / 26

Advancing to step 4:
If we divide 50 by 26, we get 1 and a remainder of 24.
Put 1 as the next digit of the answer. 
Result so far: 111.0
If we take 26 away from 50, we end up with 24.
Append the next digit (1) from the dividend to 24 and continue with: 241 / 26

Advancing to step 5:
26 goes into 241 9 times with a remainder of 7.
Record the quotient 9 as the next digit in the result. 
Result so far: 1119.0
Subtract 234 from 241 to get 7.
Fetch the next digit (9) from the dividend, attach it to 7 and continue: 79 / 26

Moving on to step 6:
26 can be fit into 79 3 times, resulting in a remainder of 1.
The number 3 becomes the next digit in our result. 
Result so far: 11193.0
If we subtract 78 from 79, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 7:
26 goes into 10 0 times with a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 11193.0
The remainder is 10 after subtracting 0 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 8:
26 can be fit into 100 3 times, resulting in a remainder of 22.
Record the quotient 3 as the next digit in the result. 
Result so far: 11193.03
Subtract 78 from 100 to get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Let's proceed to step 9:
When dividing 220 by 26, we get 8 with a remainder of 12.
Write down 8 as next digit of the result. 
Result so far: 11193.038
Subtract 208 from 220 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Let's proceed to step 10:
26 can be fit into 120 4 times, resulting in a remainder of 16.
Write down 4 as next digit of the result. 
Result so far: 11193.0384
Subtracting 104 from 120 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 11:
26 can be fit into 160 6 times, resulting in a remainder of 4.
The number 6 becomes the next digit in our result. 
Result so far: 11193.03846
Subtracting 156 from 160 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 12:
40 divided by 26 is 1 with a remainder of 14.
The next digit of our result is 1. 
Result so far: 11193.038461
If we take 26 away from 40, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Advancing to step 13:
140 divided by 26 is 5 with a remainder of 10.
Use 5 as the next digit of our solution. 
Result so far: 11193.0384615
Subtracting 130 from 140 leaves us 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.

Advancing to step 14:
26 can be fit into 100 3 times, resulting in a remainder of 22.
Put 3 as the next digit of the answer. 
Result so far: 11193.03846153
Deduct 78 from 100 and we're left with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

The final outcome is 11193.03846153, with a leftover of 2.2e-08.