266517 divided by 26 
The aim is to understand the frequency of 26 in 266517.

Let's proceed to step 1:
When dividing 2 by 26, we get 0 with a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Fetch the next digit (6) from the dividend, attach it to 2 and continue: 26 / 26

Going ahead to step 2:
26 goes into 26 1 times with a remainder of 0.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 26 from 26 leaves us with 0.
Bring next digit (6) of the dividend behind the 0 and repeat the process: 6 / 26

Moving on to step 3:
26 can be fit into 6 0 times, resulting in a remainder of 6.
The next digit of our result is 0. 
Result so far: 10.0
Subtracting 0 from 6 leaves us with 6.
Grab the next digit (5) from the dividend, add it to 6, then carry on: 65 / 26

Step 4:
26 can be fit into 65 2 times, resulting in a remainder of 13.
The number 2 becomes the next digit in our result. 
Result so far: 102.0
Deduct 52 from 65 and we're left with 13.
Append the next digit (1) from the dividend to 13 and continue with: 131 / 26

Let's proceed to step 5:
When dividing 131 by 26, we get 5 with a remainder of 1.
The next digit of our result is 5. 
Result so far: 1025.0
Subtracting 130 from 131 leaves us with 1.
Fetch the next digit (7) from the dividend, attach it to 1 and continue: 17 / 26

Advancing to step 6:
17 divided by 26 is 0 with a remainder of 17.
Use 0 as the next digit of our solution. 
Result so far: 10250.0
Subtracting 0 from 17 leaves us with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Step 7:
When dividing 170 by 26, we get 6 with a remainder of 14.
Record the quotient 6 as the next digit in the result. 
Result so far: 10250.6
If we take 156 away from 170, 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.

Moving on to step 8:
The number 26 fits into 140 5 times, leaving a remainder of 10.
The number 5 becomes the next digit in our result. 
Result so far: 10250.65
Subtract 130 from 140 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 9:
When dividing 100 by 26, we get 3 with a remainder of 22.
Use 3 as the next digit of our solution. 
Result so far: 10250.653
If we take 78 away from 100, we end up 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.

Advancing to step 10:
If we divide 220 by 26, we get 8 and a remainder of 12.
Put 8 as the next digit of the answer. 
Result so far: 10250.6538
The remainder is 12 after subtracting 208 from 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Going ahead to step 11:
If we divide 120 by 26, we get 4 and a remainder of 16.
The next digit of our result is 4. 
Result so far: 10250.65384
The remainder is 16 after subtracting 104 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 12:
The number 26 fits into 160 6 times, leaving a remainder of 4.
Write down 6 as next digit of the result. 
Result so far: 10250.653846
The remainder is 4 after subtracting 156 from 160.
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 13:
The number 26 fits into 40 1 times, leaving a remainder of 14.
Put 1 as the next digit of the answer. 
Result so far: 10250.6538461
If we subtract 26 from 40, we 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.

Moving on to step 14:
When dividing 140 by 26, we get 5 with a remainder of 10.
The next digit of our result is 5. 
Result so far: 10250.65384615
Deduct 130 from 140 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.

After the division, we end up with 10250.65384615 and a remainder of 1e-08.