91241554 divided by 300 
The aim is to understand the frequency of 300 in 91241554.

Let's proceed to step 1:
When dividing 9 by 300, we get 0 with a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Bring next digit (1) of the dividend behind the 9 and repeat the process: 91 / 300

Advancing to step 2:
300 goes into 91 0 times with a remainder of 91.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 91 to get 91.
Bring next digit (2) of the dividend behind the 91 and repeat the process: 912 / 300

Going ahead to step 3:
300 can be fit into 912 3 times, resulting in a remainder of 12.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Subtract 900 from 912 to get 12.
Take the next digit (4) from the dividend and append it to 12, then repeat: 124 / 300

Step 4:
124 divided by 300 is 0 with a remainder of 124.
The next digit of our result is 0. 
Result so far: 30.0
If we take 0 away from 124, we end up with 124.
Bring next digit (1) of the dividend behind the 124 and repeat the process: 1241 / 300

Advancing to step 5:
The number 300 fits into 1241 4 times, leaving a remainder of 41.
Record the quotient 4 as the next digit in the result. 
Result so far: 304.0
The remainder is 41 after subtracting 1200 from 1241.
Take the next digit (5) from the dividend and append it to 41, then repeat: 415 / 300

Let's proceed to step 6:
300 can be fit into 415 1 times, resulting in a remainder of 115.
The number 1 becomes the next digit in our result. 
Result so far: 3041.0
Subtract 300 from 415 to get 115.
Take the next digit (5) from the dividend and append it to 115, then repeat: 1155 / 300

Going ahead to step 7:
1155 divided by 300 is 3 with a remainder of 255.
The next digit of our result is 3. 
Result so far: 30413.0
The remainder is 255 after subtracting 900 from 1155.
Include the next digit (4) from the dividend after 255, then repeat: 2554 / 300

Let's proceed to step 8:
The number 300 fits into 2554 8 times, leaving a remainder of 154.
The number 8 becomes the next digit in our result. 
Result so far: 304138.0
The remainder is 154 after subtracting 2400 from 2554.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1540, and continue the process.

Advancing to step 9:
300 can be fit into 1540 5 times, resulting in a remainder of 40.
The next digit of our result is 5. 
Result so far: 304138.5
Subtract 1500 from 1540 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 10:
300 can be fit into 400 1 times, resulting in a remainder of 100.
Put 1 as the next digit of the answer. 
Result so far: 304138.51
If we take 300 away from 400, we end up 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 11:
The number 300 fits into 1000 3 times, leaving a remainder of 100.
The next digit of our result is 3. 
Result so far: 304138.513
Deduct 900 from 1000 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.

Moving on to step 12:
The number 300 fits into 1000 3 times, leaving a remainder of 100.
Record the quotient 3 as the next digit in the result. 
Result so far: 304138.5133
The remainder is 100 after subtracting 900 from 1000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

The final outcome is 304138.5133, with a leftover of 0.001.