We're dividing 80091280 by 135 
The aim is to understand the frequency of 135 in 80091280.

Let's proceed to step 1:
When dividing 8 by 135, we get 0 with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Take the next digit (0) from the dividend and append it to 8, then repeat: 80 / 135

Step 2:
80 divided by 135 is 0 with a remainder of 80.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 80 after subtracting 0 from 80.
Include the next digit (0) from the dividend after 80, then repeat: 800 / 135

On to step 3:
When dividing 800 by 135, we get 5 with a remainder of 125.
Write down 5 as next digit of the result. 
Result so far: 5.0
If we subtract 675 from 800, we get 125.
Include the next digit (9) from the dividend after 125, then repeat: 1259 / 135

Going ahead to step 4:
135 can be fit into 1259 9 times, resulting in a remainder of 44.
Write down 9 as next digit of the result. 
Result so far: 59.0
The remainder is 44 after subtracting 1215 from 1259.
Grab the next digit (1) from the dividend, add it to 44, then carry on: 441 / 135

Going ahead to step 5:
441 divided by 135 is 3 with a remainder of 36.
Use 3 as the next digit of our solution. 
Result so far: 593.0
The remainder is 36 after subtracting 405 from 441.
Append the next digit (2) from the dividend to 36 and continue with: 362 / 135

Moving on to step 6:
135 can be fit into 362 2 times, resulting in a remainder of 92.
Record the quotient 2 as the next digit in the result. 
Result so far: 5932.0
Subtract 270 from 362 to get 92.
Append the next digit (8) from the dividend to 92 and continue with: 928 / 135

On to step 7:
928 divided by 135 is 6 with a remainder of 118.
Put 6 as the next digit of the answer. 
Result so far: 59326.0
If we take 810 away from 928, we end up with 118.
Bring next digit (0) of the dividend behind the 118 and repeat the process: 1180 / 135

Advancing to step 8:
1180 divided by 135 is 8 with a remainder of 100.
Write down 8 as next digit of the result. 
Result so far: 593268.0
The remainder is 100 after subtracting 1080 from 1180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Moving on to step 9:
135 goes into 1000 7 times with a remainder of 55.
Write down 7 as next digit of the result. 
Result so far: 593268.7
The remainder is 55 after subtracting 945 from 1000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Advancing to step 10:
550 divided by 135 is 4 with a remainder of 10.
Use 4 as the next digit of our solution. 
Result so far: 593268.74
Deduct 540 from 550 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.

Going ahead to step 11:
The number 135 fits into 100 0 times, leaving a remainder of 100.
Record the quotient 0 as the next digit in the result. 
Result so far: 593268.74
Deduct 0 from 100 and we're left with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

On to step 12:
When dividing 1000 by 135, we get 7 with a remainder of 55.
Use 7 as the next digit of our solution. 
Result so far: 593268.7407
Subtracting 945 from 1000 leaves us with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

On to step 13:
If we divide 550 by 135, we get 4 and a remainder of 10.
The next digit of our result is 4. 
Result so far: 593268.74074
Subtract 540 from 550 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.

Moving on to step 14:
When dividing 100 by 135, we get 0 with a remainder of 100.
The next digit of our result is 0. 
Result so far: 593268.74074
Deduct 0 from 100 and we're left with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Let's proceed to step 15:
1000 divided by 135 is 7 with a remainder of 55.
The number 7 becomes the next digit in our result. 
Result so far: 593268.7407407
The remainder is 55 after subtracting 945 from 1000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Going ahead to step 16:
If we divide 550 by 135, we get 4 and a remainder of 10.
Record the quotient 4 as the next digit in the result. 
Result so far: 593268.74074074
If we take 540 away from 550, we end up 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.

The final result is 593268.74074074 with a remainder of 1e-08.