566827 divided by 91 
The aim is to understand the frequency of 91 in 566827.

Step 1:
If we divide 5 by 91, we get 0 and a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Grab the next digit (6) from the dividend, add it to 5, then carry on: 56 / 91

Moving on to step 2:
If we divide 56 by 91, we get 0 and a remainder of 56.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 56, we get 56.
Bring next digit (6) of the dividend behind the 56 and repeat the process: 566 / 91

Advancing to step 3:
91 can be fit into 566 6 times, resulting in a remainder of 20.
Put 6 as the next digit of the answer. 
Result so far: 6.0
If we take 546 away from 566, we end up with 20.
Fetch the next digit (8) from the dividend, attach it to 20 and continue: 208 / 91

Moving on to step 4:
208 divided by 91 is 2 with a remainder of 26.
The number 2 becomes the next digit in our result. 
Result so far: 62.0
If we take 182 away from 208, we end up with 26.
Take the next digit (2) from the dividend and append it to 26, then repeat: 262 / 91

Let's proceed to step 5:
If we divide 262 by 91, we get 2 and a remainder of 80.
Put 2 as the next digit of the answer. 
Result so far: 622.0
Deduct 182 from 262 and we're left with 80.
Include the next digit (7) from the dividend after 80, then repeat: 807 / 91

Step 6:
The number 91 fits into 807 8 times, leaving a remainder of 79.
The next digit of our result is 8. 
Result so far: 6228.0
Deduct 728 from 807 and we're left with 79.
Since there are no more digits in the dividend, we add a zero to the remainder making it 790, and continue the process.

Advancing to step 7:
91 can be fit into 790 8 times, resulting in a remainder of 62.
Record the quotient 8 as the next digit in the result. 
Result so far: 6228.8
If we take 728 away from 790, we end up with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Moving on to step 8:
The number 91 fits into 620 6 times, leaving a remainder of 74.
The number 6 becomes the next digit in our result. 
Result so far: 6228.86
If we take 546 away from 620, we end up with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Let's proceed to step 9:
740 divided by 91 is 8 with a remainder of 12.
The next digit of our result is 8. 
Result so far: 6228.868
The remainder is 12 after subtracting 728 from 740.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 10:
120 divided by 91 is 1 with a remainder of 29.
Put 1 as the next digit of the answer. 
Result so far: 6228.8681
Deduct 91 from 120 and we're left with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Advancing to step 11:
The number 91 fits into 290 3 times, leaving a remainder of 17.
Use 3 as the next digit of our solution. 
Result so far: 6228.86813
The remainder is 17 after subtracting 273 from 290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Going ahead to step 12:
170 divided by 91 is 1 with a remainder of 79.
Put 1 as the next digit of the answer. 
Result so far: 6228.868131
Deduct 91 from 170 and we're left with 79.
Since there are no more digits in the dividend, we add a zero to the remainder making it 790, and continue the process.

Let's proceed to step 13:
91 can be fit into 790 8 times, resulting in a remainder of 62.
Use 8 as the next digit of our solution. 
Result so far: 6228.8681318
Deduct 728 from 790 and we're left with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Step 14:
When dividing 620 by 91, we get 6 with a remainder of 74.
Use 6 as the next digit of our solution. 
Result so far: 6228.86813186
Subtract 546 from 620 to get 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

In conclusion, the division gives 6228.86813186 with a balance of 7.4e-08.