Let's divide 872984 by 91
The aim is to understand the frequency of 91 in 872984.

Moving on to step 1:
91 goes into 8 0 times with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Append the next digit (7) from the dividend to 8 and continue with: 87 / 91

Let's proceed to step 2:
When dividing 87 by 91, we get 0 with a remainder of 87.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 87 after subtracting 0 from 87.
Include the next digit (2) from the dividend after 87, then repeat: 872 / 91

Moving on to step 3:
91 goes into 872 9 times with a remainder of 53.
The number 9 becomes the next digit in our result. 
Result so far: 9.0
Subtract 819 from 872 to get 53.
Append the next digit (9) from the dividend to 53 and continue with: 539 / 91

Going ahead to step 4:
539 divided by 91 is 5 with a remainder of 84.
Write down 5 as next digit of the result. 
Result so far: 95.0
Deduct 455 from 539 and we're left with 84.
Fetch the next digit (8) from the dividend, attach it to 84 and continue: 848 / 91

Going ahead to step 5:
848 divided by 91 is 9 with a remainder of 29.
Write down 9 as next digit of the result. 
Result so far: 959.0
Subtracting 819 from 848 leaves us with 29.
Include the next digit (4) from the dividend after 29, then repeat: 294 / 91

Step 6:
91 can be fit into 294 3 times, resulting in a remainder of 21.
Write down 3 as next digit of the result. 
Result so far: 9593.0
Subtracting 273 from 294 leaves us 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.

Going ahead to step 7:
If we divide 210 by 91, we get 2 and a remainder of 28.
The next digit of our result is 2. 
Result so far: 9593.2
Deduct 182 from 210 and we're left 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.

Going ahead to step 8:
When dividing 280 by 91, we get 3 with a remainder of 7.
Write down 3 as next digit of the result. 
Result so far: 9593.23
Subtracting 273 from 280 leaves us with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Let's proceed to step 9:
When dividing 70 by 91, we get 0 with a remainder of 70.
Write down 0 as next digit of the result. 
Result so far: 9593.23
Subtract 0 from 70 to get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

On to step 10:
If we divide 700 by 91, we get 7 and a remainder of 63.
Write down 7 as next digit of the result. 
Result so far: 9593.2307
If we take 637 away from 700, we end up with 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Advancing to step 11:
630 divided by 91 is 6 with a remainder of 84.
The next digit of our result is 6. 
Result so far: 9593.23076
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 12:
840 divided by 91 is 9 with a remainder of 21.
Put 9 as the next digit of the answer. 
Result so far: 9593.230769
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.

Moving on to step 13:
The number 91 fits into 210 2 times, leaving a remainder of 28.
The number 2 becomes the next digit in our result. 
Result so far: 9593.2307692
Subtract 182 from 210 to get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Moving on to step 14:
The number 91 fits into 280 3 times, leaving a remainder of 7.
Write down 3 as next digit of the result. 
Result so far: 9593.23076923
If we subtract 273 from 280, we 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.

In conclusion, the division gives 9593.23076923 with a balance of 7e-09.