We're dividing 564739 by 91 
The aim is to understand the frequency of 91 in 564739.

Advancing to step 1:
91 goes into 5 0 times with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Append the next digit (6) from the dividend to 5 and continue with: 56 / 91

Moving on to step 2:
91 can be fit into 56 0 times, resulting in a remainder of 56.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 56 leaves us with 56.
Grab the next digit (4) from the dividend, add it to 56, then carry on: 564 / 91

Advancing to step 3:
If we divide 564 by 91, we get 6 and a remainder of 18.
Write down 6 as next digit of the result. 
Result so far: 6.0
Subtracting 546 from 564 leaves us with 18.
Append the next digit (7) from the dividend to 18 and continue with: 187 / 91

On to step 4:
When dividing 187 by 91, we get 2 with a remainder of 5.
The number 2 becomes the next digit in our result. 
Result so far: 62.0
Subtracting 182 from 187 leaves us with 5.
Fetch the next digit (3) from the dividend, attach it to 5 and continue: 53 / 91

Advancing to step 5:
When dividing 53 by 91, we get 0 with a remainder of 53.
Write down 0 as next digit of the result. 
Result so far: 620.0
Deduct 0 from 53 and we're left with 53.
Fetch the next digit (9) from the dividend, attach it to 53 and continue: 539 / 91

On to step 6:
91 goes into 539 5 times with a remainder of 84.
Use 5 as the next digit of our solution. 
Result so far: 6205.0
Subtract 455 from 539 to get 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Let's proceed to step 7:
When dividing 840 by 91, we get 9 with a remainder of 21.
Record the quotient 9 as the next digit in the result. 
Result so far: 6205.9
The remainder is 21 after subtracting 819 from 840.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Moving on to step 8:
210 divided by 91 is 2 with a remainder of 28.
Put 2 as the next digit of the answer. 
Result so far: 6205.92
Subtracting 182 from 210 leaves us with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Step 9:
280 divided by 91 is 3 with a remainder of 7.
Write down 3 as next digit of the result. 
Result so far: 6205.923
Subtract 273 from 280 to get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

On to step 10:
91 can be fit into 70 0 times, resulting in a remainder of 70.
Put 0 as the next digit of the answer. 
Result so far: 6205.923
If we take 0 away from 70, we end up with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Step 11:
91 goes into 700 7 times with a remainder of 63.
The number 7 becomes the next digit in our result. 
Result so far: 6205.92307
The remainder is 63 after subtracting 637 from 700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Going ahead to step 12:
If we divide 630 by 91, we get 6 and a remainder of 84.
The next digit of our result is 6. 
Result so far: 6205.923076
If we subtract 546 from 630, we get 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Advancing to step 13:
The number 91 fits into 840 9 times, leaving a remainder of 21.
The number 9 becomes the next digit in our result. 
Result so far: 6205.9230769
If we take 819 away from 840, we end up with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Advancing to step 14:
210 divided by 91 is 2 with a remainder of 28.
Put 2 as the next digit of the answer. 
Result so far: 6205.92307692
The remainder is 28 after subtracting 182 from 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

After the division, we end up with 6205.92307692 and a remainder of 2.8e-08.