452485 divided by 91 
The aim is to understand the frequency of 91 in 452485.

Going ahead to step 1:
The number 91 fits into 4 0 times, leaving a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Include the next digit (5) from the dividend after 4, then repeat: 45 / 91

Let's proceed to step 2:
If we divide 45 by 91, we get 0 and a remainder of 45.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 45 after subtracting 0 from 45.
Take the next digit (2) from the dividend and append it to 45, then repeat: 452 / 91

Step 3:
452 divided by 91 is 4 with a remainder of 88.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
If we subtract 364 from 452, we get 88.
Take the next digit (4) from the dividend and append it to 88, then repeat: 884 / 91

Step 4:
91 goes into 884 9 times with a remainder of 65.
The number 9 becomes the next digit in our result. 
Result so far: 49.0
If we take 819 away from 884, we end up with 65.
Include the next digit (8) from the dividend after 65, then repeat: 658 / 91

Step 5:
658 divided by 91 is 7 with a remainder of 21.
Record the quotient 7 as the next digit in the result. 
Result so far: 497.0
Subtracting 637 from 658 leaves us with 21.
Fetch the next digit (5) from the dividend, attach it to 21 and continue: 215 / 91

Moving on to step 6:
When dividing 215 by 91, we get 2 with a remainder of 33.
The next digit of our result is 2. 
Result so far: 4972.0
Subtracting 182 from 215 leaves us 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.

Going ahead to step 7:
When dividing 330 by 91, we get 3 with a remainder of 57.
Record the quotient 3 as the next digit in the result. 
Result so far: 4972.3
If we take 273 away from 330, we end up with 57.
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 8:
When dividing 570 by 91, we get 6 with a remainder of 24.
Put 6 as the next digit of the answer. 
Result so far: 4972.36
If we take 546 away from 570, we end up with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Step 9:
The number 91 fits into 240 2 times, leaving a remainder of 58.
Use 2 as the next digit of our solution. 
Result so far: 4972.362
Subtracting 182 from 240 leaves us with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Moving on to step 10:
91 can be fit into 580 6 times, resulting in a remainder of 34.
The next digit of our result is 6. 
Result so far: 4972.3626
If we subtract 546 from 580, we get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Moving on to step 11:
If we divide 340 by 91, we get 3 and a remainder of 67.
Write down 3 as next digit of the result. 
Result so far: 4972.36263
Deduct 273 from 340 and we're left with 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Advancing to step 12:
When dividing 670 by 91, we get 7 with a remainder of 33.
Record the quotient 7 as the next digit in the result. 
Result so far: 4972.362637
If we take 637 away from 670, 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.

Moving on to step 13:
The number 91 fits into 330 3 times, leaving a remainder of 57.
The next digit of our result is 3. 
Result so far: 4972.3626373
Deduct 273 from 330 and we're left with 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

On to step 14:
The number 91 fits into 570 6 times, leaving a remainder of 24.
Record the quotient 6 as the next digit in the result. 
Result so far: 4972.36263736
If we take 546 away from 570, we end up with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

In conclusion, the division gives 4972.36263736 with a balance of 2.4e-08.