We divide 98289 by 81
The aim is to understand the frequency of 81 in 98289.

Let's proceed to step 1:
When dividing 9 by 81, we get 0 with a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Fetch the next digit (8) from the dividend, attach it to 9 and continue: 98 / 81

Advancing to step 2:
81 can be fit into 98 1 times, resulting in a remainder of 17.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we take 81 away from 98, we end up with 17.
Bring next digit (2) of the dividend behind the 17 and repeat the process: 172 / 81

Going ahead to step 3:
If we divide 172 by 81, we get 2 and a remainder of 10.
The next digit of our result is 2. 
Result so far: 12.0
If we take 162 away from 172, we end up with 10.
Take the next digit (8) from the dividend and append it to 10, then repeat: 108 / 81

On to step 4:
81 can be fit into 108 1 times, resulting in a remainder of 27.
Put 1 as the next digit of the answer. 
Result so far: 121.0
Deduct 81 from 108 and we're left with 27.
Include the next digit (9) from the dividend after 27, then repeat: 279 / 81

Let's proceed to step 5:
If we divide 279 by 81, we get 3 and a remainder of 36.
Use 3 as the next digit of our solution. 
Result so far: 1213.0
Deduct 243 from 279 and we're left with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Let's proceed to step 6:
When dividing 360 by 81, we get 4 with a remainder of 36.
The number 4 becomes the next digit in our result. 
Result so far: 1213.4
Subtract 324 from 360 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.

Step 7:
When dividing 360 by 81, we get 4 with a remainder of 36.
Put 4 as the next digit of the answer. 
Result so far: 1213.44
Subtract 324 from 360 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.

After the division, we end up with 1213.44 and a remainder of 0.036.