We look at the division of 240555 by 91 
The aim is to understand the frequency of 91 in 240555.

Advancing to step 1:
The number 91 fits into 2 0 times, leaving a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Fetch the next digit (4) from the dividend, attach it to 2 and continue: 24 / 91

Moving on to step 2:
When dividing 24 by 91, we get 0 with a remainder of 24.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 24 after subtracting 0 from 24.
Bring next digit (0) of the dividend behind the 24 and repeat the process: 240 / 91

Moving on to step 3:
If we divide 240 by 91, we get 2 and a remainder of 58.
Write down 2 as next digit of the result. 
Result so far: 2.0
Subtract 182 from 240 to get 58.
Bring next digit (5) of the dividend behind the 58 and repeat the process: 585 / 91

Advancing to step 4:
91 goes into 585 6 times with a remainder of 39.
Put 6 as the next digit of the answer. 
Result so far: 26.0
The remainder is 39 after subtracting 546 from 585.
Take the next digit (5) from the dividend and append it to 39, then repeat: 395 / 91

Going ahead to step 5:
91 goes into 395 4 times with a remainder of 31.
Use 4 as the next digit of our solution. 
Result so far: 264.0
The remainder is 31 after subtracting 364 from 395.
Take the next digit (5) from the dividend and append it to 31, then repeat: 315 / 91

Step 6:
The number 91 fits into 315 3 times, leaving a remainder of 42.
The next digit of our result is 3. 
Result so far: 2643.0
If we take 273 away from 315, we end up with 42.
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 7:
When dividing 420 by 91, we get 4 with a remainder of 56.
The next digit of our result is 4. 
Result so far: 2643.4
Subtracting 364 from 420 leaves us with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Step 8:
When dividing 560 by 91, we get 6 with a remainder of 14.
Write down 6 as next digit of the result. 
Result so far: 2643.46
If we take 546 away from 560, 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 9:
If we divide 140 by 91, we get 1 and a remainder of 49.
Write down 1 as next digit of the result. 
Result so far: 2643.461
If we take 91 away from 140, we end up with 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Step 10:
If we divide 490 by 91, we get 5 and a remainder of 35.
Write down 5 as next digit of the result. 
Result so far: 2643.4615
If we take 455 away from 490, we end up with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Going ahead to step 11:
91 can be fit into 350 3 times, resulting in a remainder of 77.
Write down 3 as next digit of the result. 
Result so far: 2643.46153
Subtracting 273 from 350 leaves us with 77.
Since there are no more digits in the dividend, we add a zero to the remainder making it 770, and continue the process.

On to step 12:
When dividing 770 by 91, we get 8 with a remainder of 42.
The number 8 becomes the next digit in our result. 
Result so far: 2643.461538
The remainder is 42 after subtracting 728 from 770.
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 13:
91 can be fit into 420 4 times, resulting in a remainder of 56.
Record the quotient 4 as the next digit in the result. 
Result so far: 2643.4615384
Subtracting 364 from 420 leaves us with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Let's proceed to step 14:
The number 91 fits into 560 6 times, leaving a remainder of 14.
The next digit of our result is 6. 
Result so far: 2643.46153846
Subtract 546 from 560 to 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.

The quotient of the division is 2643.46153846, and the remainder is 1.4e-08.