Let's divide 478728 by 91
The aim is to understand the frequency of 91 in 478728.

On to step 1:
91 goes into 4 0 times with a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Bring next digit (7) of the dividend behind the 4 and repeat the process: 47 / 91

Step 2:
91 can be fit into 47 0 times, resulting in a remainder of 47.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 47 after subtracting 0 from 47.
Append the next digit (8) from the dividend to 47 and continue with: 478 / 91

Moving on to step 3:
91 goes into 478 5 times with a remainder of 23.
Use 5 as the next digit of our solution. 
Result so far: 5.0
If we take 455 away from 478, we end up with 23.
Include the next digit (7) from the dividend after 23, then repeat: 237 / 91

Moving on to step 4:
91 can be fit into 237 2 times, resulting in a remainder of 55.
Record the quotient 2 as the next digit in the result. 
Result so far: 52.0
If we take 182 away from 237, we end up with 55.
Take the next digit (2) from the dividend and append it to 55, then repeat: 552 / 91

Moving on to step 5:
91 goes into 552 6 times with a remainder of 6.
The number 6 becomes the next digit in our result. 
Result so far: 526.0
The remainder is 6 after subtracting 546 from 552.
Append the next digit (8) from the dividend to 6 and continue with: 68 / 91

Let's proceed to step 6:
91 can be fit into 68 0 times, resulting in a remainder of 68.
The number 0 becomes the next digit in our result. 
Result so far: 5260.0
Subtract 0 from 68 to get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Step 7:
91 goes into 680 7 times with a remainder of 43.
Put 7 as the next digit of the answer. 
Result so far: 5260.7
Subtract 637 from 680 to get 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Let's proceed to step 8:
The number 91 fits into 430 4 times, leaving a remainder of 66.
The next digit of our result is 4. 
Result so far: 5260.74
If we subtract 364 from 430, we get 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Let's proceed to step 9:
91 can be fit into 660 7 times, resulting in a remainder of 23.
Write down 7 as next digit of the result. 
Result so far: 5260.747
If we take 637 away from 660, we end up with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Going ahead to step 10:
If we divide 230 by 91, we get 2 and a remainder of 48.
Put 2 as the next digit of the answer. 
Result so far: 5260.7472
Subtract 182 from 230 to get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Step 11:
480 divided by 91 is 5 with a remainder of 25.
Use 5 as the next digit of our solution. 
Result so far: 5260.74725
Subtract 455 from 480 to get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

On to step 12:
250 divided by 91 is 2 with a remainder of 68.
Write down 2 as next digit of the result. 
Result so far: 5260.747252
The remainder is 68 after subtracting 182 from 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

On to step 13:
680 divided by 91 is 7 with a remainder of 43.
Put 7 as the next digit of the answer. 
Result so far: 5260.7472527
The remainder is 43 after subtracting 637 from 680.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Moving on to step 14:
When dividing 430 by 91, we get 4 with a remainder of 66.
The next digit of our result is 4. 
Result so far: 5260.74725274
Subtract 364 from 430 to get 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

In conclusion, the division gives 5260.74725274 with a balance of 6.6e-08.