We're dividing 266511 by 69 
The aim is to understand the frequency of 69 in 266511.

Going ahead to step 1:
2 divided by 69 is 0 with a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Include the next digit (6) from the dividend after 2, then repeat: 26 / 69

Going ahead to step 2:
The number 69 fits into 26 0 times, leaving a remainder of 26.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 26, we get 26.
Grab the next digit (6) from the dividend, add it to 26, then carry on: 266 / 69

Step 3:
266 divided by 69 is 3 with a remainder of 59.
The next digit of our result is 3. 
Result so far: 3.0
Subtracting 207 from 266 leaves us with 59.
Include the next digit (5) from the dividend after 59, then repeat: 595 / 69

Going ahead to step 4:
69 can be fit into 595 8 times, resulting in a remainder of 43.
The number 8 becomes the next digit in our result. 
Result so far: 38.0
Subtracting 552 from 595 leaves us with 43.
Include the next digit (1) from the dividend after 43, then repeat: 431 / 69

Advancing to step 5:
431 divided by 69 is 6 with a remainder of 17.
Put 6 as the next digit of the answer. 
Result so far: 386.0
Subtract 414 from 431 to get 17.
Bring next digit (1) of the dividend behind the 17 and repeat the process: 171 / 69

Moving on to step 6:
If we divide 171 by 69, we get 2 and a remainder of 33.
Write down 2 as next digit of the result. 
Result so far: 3862.0
If we take 138 away from 171, we end up with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Step 7:
When dividing 330 by 69, we get 4 with a remainder of 54.
The next digit of our result is 4. 
Result so far: 3862.4
If we take 276 away from 330, we end up with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Advancing to step 8:
If we divide 540 by 69, we get 7 and a remainder of 57.
Write down 7 as next digit of the result. 
Result so far: 3862.47
The remainder is 57 after subtracting 483 from 540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Let's proceed to step 9:
The number 69 fits into 570 8 times, leaving a remainder of 18.
The number 8 becomes the next digit in our result. 
Result so far: 3862.478
Subtracting 552 from 570 leaves us with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Moving on to step 10:
The number 69 fits into 180 2 times, leaving a remainder of 42.
Use 2 as the next digit of our solution. 
Result so far: 3862.4782
The remainder is 42 after subtracting 138 from 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Moving on to step 11:
420 divided by 69 is 6 with a remainder of 6.
Record the quotient 6 as the next digit in the result. 
Result so far: 3862.47826
Subtract 414 from 420 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 12:
The number 69 fits into 60 0 times, leaving a remainder of 60.
Use 0 as the next digit of our solution. 
Result so far: 3862.47826
Deduct 0 from 60 and we're left with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Let's proceed to step 13:
69 goes into 600 8 times with a remainder of 48.
Use 8 as the next digit of our solution. 
Result so far: 3862.4782608
Subtracting 552 from 600 leaves us with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Going ahead to step 14:
69 can be fit into 480 6 times, resulting in a remainder of 66.
Record the quotient 6 as the next digit in the result. 
Result so far: 3862.47826086
The remainder is 66 after subtracting 414 from 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

The final outcome is 3862.47826086, with a leftover of 6.6e-08.