We're dividing 25898 by 91 
The aim is to understand the frequency of 91 in 25898.

Let's proceed to step 1:
2 divided by 91 is 0 with a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Bring next digit (5) of the dividend behind the 2 and repeat the process: 25 / 91

Going ahead to step 2:
The number 91 fits into 25 0 times, leaving a remainder of 25.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 25 leaves us with 25.
Bring next digit (8) of the dividend behind the 25 and repeat the process: 258 / 91

Let's proceed to step 3:
The number 91 fits into 258 2 times, leaving a remainder of 76.
Use 2 as the next digit of our solution. 
Result so far: 2.0
If we take 182 away from 258, we end up with 76.
Bring next digit (9) of the dividend behind the 76 and repeat the process: 769 / 91

Moving on to step 4:
91 goes into 769 8 times with a remainder of 41.
Record the quotient 8 as the next digit in the result. 
Result so far: 28.0
If we subtract 728 from 769, we get 41.
Grab the next digit (8) from the dividend, add it to 41, then carry on: 418 / 91

On to step 5:
If we divide 418 by 91, we get 4 and a remainder of 54.
The next digit of our result is 4. 
Result so far: 284.0
The remainder is 54 after subtracting 364 from 418.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Moving on to step 6:
If we divide 540 by 91, we get 5 and a remainder of 85.
Use 5 as the next digit of our solution. 
Result so far: 284.5
Subtract 455 from 540 to get 85.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

Going ahead to step 7:
850 divided by 91 is 9 with a remainder of 31.
Use 9 as the next digit of our solution. 
Result so far: 284.59
Deduct 819 from 850 and we're left with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Let's proceed to step 8:
91 can be fit into 310 3 times, resulting in a remainder of 37.
Write down 3 as next digit of the result. 
Result so far: 284.593
If we subtract 273 from 310, we get 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Step 9:
If we divide 370 by 91, we get 4 and a remainder of 6.
The next digit of our result is 4. 
Result so far: 284.5934
Deduct 364 from 370 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 10:
91 goes into 60 0 times with a remainder of 60.
The number 0 becomes the next digit in our result. 
Result so far: 284.5934
Deduct 0 from 60 and we're left with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 11:
91 can be fit into 600 6 times, resulting in a remainder of 54.
Use 6 as the next digit of our solution. 
Result so far: 284.593406
If we take 546 away from 600, we end up with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Going ahead to step 12:
91 can be fit into 540 5 times, resulting in a remainder of 85.
Write down 5 as next digit of the result. 
Result so far: 284.5934065
Subtracting 455 from 540 leaves us with 85.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

Advancing to step 13:
The number 91 fits into 850 9 times, leaving a remainder of 31.
The number 9 becomes the next digit in our result. 
Result so far: 284.59340659
Subtract 819 from 850 to get 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

In conclusion, the division gives 284.59340659 with a balance of 3.1e-08.