824729 divided by 91 
The aim is to understand the frequency of 91 in 824729.

Moving on to step 1:
If we divide 8 by 91, we get 0 and a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Fetch the next digit (2) from the dividend, attach it to 8 and continue: 82 / 91

On to step 2:
If we divide 82 by 91, we get 0 and a remainder of 82.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 82, we get 82.
Fetch the next digit (4) from the dividend, attach it to 82 and continue: 824 / 91

Going ahead to step 3:
824 divided by 91 is 9 with a remainder of 5.
Put 9 as the next digit of the answer. 
Result so far: 9.0
Subtract 819 from 824 to get 5.
Append the next digit (7) from the dividend to 5 and continue with: 57 / 91

Going ahead to step 4:
If we divide 57 by 91, we get 0 and a remainder of 57.
Use 0 as the next digit of our solution. 
Result so far: 90.0
Subtract 0 from 57 to get 57.
Append the next digit (2) from the dividend to 57 and continue with: 572 / 91

Let's proceed to step 5:
If we divide 572 by 91, we get 6 and a remainder of 26.
Write down 6 as next digit of the result. 
Result so far: 906.0
Subtracting 546 from 572 leaves us with 26.
Bring next digit (9) of the dividend behind the 26 and repeat the process: 269 / 91

On to step 6:
The number 91 fits into 269 2 times, leaving a remainder of 87.
Record the quotient 2 as the next digit in the result. 
Result so far: 9062.0
Deduct 182 from 269 and we're left with 87.
Since there are no more digits in the dividend, we add a zero to the remainder making it 870, and continue the process.

Going ahead to step 7:
870 divided by 91 is 9 with a remainder of 51.
Use 9 as the next digit of our solution. 
Result so far: 9062.9
If we subtract 819 from 870, we get 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Step 8:
510 divided by 91 is 5 with a remainder of 55.
Use 5 as the next digit of our solution. 
Result so far: 9062.95
Deduct 455 from 510 and we're left with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Advancing to step 9:
91 can be fit into 550 6 times, resulting in a remainder of 4.
Record the quotient 6 as the next digit in the result. 
Result so far: 9062.956
Deduct 546 from 550 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 10:
91 goes into 40 0 times with a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 9062.956
Deduct 0 from 40 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 11:
When dividing 400 by 91, we get 4 with a remainder of 36.
Record the quotient 4 as the next digit in the result. 
Result so far: 9062.95604
Subtract 364 from 400 to get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Going ahead to step 12:
If we divide 360 by 91, we get 3 and a remainder of 87.
Write down 3 as next digit of the result. 
Result so far: 9062.956043
The remainder is 87 after subtracting 273 from 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 870, and continue the process.

Moving on to step 13:
When dividing 870 by 91, we get 9 with a remainder of 51.
Record the quotient 9 as the next digit in the result. 
Result so far: 9062.9560439
Subtracting 819 from 870 leaves us with 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

On to step 14:
510 divided by 91 is 5 with a remainder of 55.
Put 5 as the next digit of the answer. 
Result so far: 9062.95604395
Subtracting 455 from 510 leaves us with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

After the division, we end up with 9062.95604395 and a remainder of 5.5e-08.