Let's divide 579298 by 91
The aim is to understand the frequency of 91 in 579298.

Advancing to step 1:
If we divide 5 by 91, we get 0 and a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Append the next digit (7) from the dividend to 5 and continue with: 57 / 91

Moving on to step 2:
91 can be fit into 57 0 times, resulting in a remainder of 57.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 57 to get 57.
Bring next digit (9) of the dividend behind the 57 and repeat the process: 579 / 91

Moving on to step 3:
91 can be fit into 579 6 times, resulting in a remainder of 33.
The next digit of our result is 6. 
Result so far: 6.0
Deduct 546 from 579 and we're left with 33.
Append the next digit (2) from the dividend to 33 and continue with: 332 / 91

Let's proceed to step 4:
332 divided by 91 is 3 with a remainder of 59.
Use 3 as the next digit of our solution. 
Result so far: 63.0
Subtracting 273 from 332 leaves us with 59.
Append the next digit (9) from the dividend to 59 and continue with: 599 / 91

Going ahead to step 5:
If we divide 599 by 91, we get 6 and a remainder of 53.
The number 6 becomes the next digit in our result. 
Result so far: 636.0
Subtracting 546 from 599 leaves us with 53.
Grab the next digit (8) from the dividend, add it to 53, then carry on: 538 / 91

Let's proceed to step 6:
When dividing 538 by 91, we get 5 with a remainder of 83.
Put 5 as the next digit of the answer. 
Result so far: 6365.0
Subtracting 455 from 538 leaves us with 83.
Since there are no more digits in the dividend, we add a zero to the remainder making it 830, and continue the process.

Let's proceed to step 7:
If we divide 830 by 91, we get 9 and a remainder of 11.
Put 9 as the next digit of the answer. 
Result so far: 6365.9
The remainder is 11 after subtracting 819 from 830.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

On to step 8:
The number 91 fits into 110 1 times, leaving a remainder of 19.
Record the quotient 1 as the next digit in the result. 
Result so far: 6365.91
If we subtract 91 from 110, we get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Advancing to step 9:
The number 91 fits into 190 2 times, leaving a remainder of 8.
The next digit of our result is 2. 
Result so far: 6365.912
Deduct 182 from 190 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 10:
91 goes into 80 0 times with a remainder of 80.
The next digit of our result is 0. 
Result so far: 6365.912
If we take 0 away from 80, we end up with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Advancing to step 11:
800 divided by 91 is 8 with a remainder of 72.
Use 8 as the next digit of our solution. 
Result so far: 6365.91208
Subtracting 728 from 800 leaves us with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Advancing to step 12:
720 divided by 91 is 7 with a remainder of 83.
Put 7 as the next digit of the answer. 
Result so far: 6365.912087
Subtracting 637 from 720 leaves us with 83.
Since there are no more digits in the dividend, we add a zero to the remainder making it 830, and continue the process.

Advancing to step 13:
91 can be fit into 830 9 times, resulting in a remainder of 11.
Use 9 as the next digit of our solution. 
Result so far: 6365.9120879
Subtract 819 from 830 to get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Advancing to step 14:
91 goes into 110 1 times with a remainder of 19.
Use 1 as the next digit of our solution. 
Result so far: 6365.91208791
Subtracting 91 from 110 leaves us with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

The final result is 6365.91208791 with a remainder of 1.9e-08.