71595 divided by 81 
The aim is to understand the frequency of 81 in 71595.

Moving on to step 1:
7 divided by 81 is 0 with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Fetch the next digit (1) from the dividend, attach it to 7 and continue: 71 / 81

Step 2:
81 can be fit into 71 0 times, resulting in a remainder of 71.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 71 after subtracting 0 from 71.
Fetch the next digit (5) from the dividend, attach it to 71 and continue: 715 / 81

Moving on to step 3:
When dividing 715 by 81, we get 8 with a remainder of 67.
Write down 8 as next digit of the result. 
Result so far: 8.0
If we take 648 away from 715, we end up with 67.
Grab the next digit (9) from the dividend, add it to 67, then carry on: 679 / 81

Moving on to step 4:
The number 81 fits into 679 8 times, leaving a remainder of 31.
Write down 8 as next digit of the result. 
Result so far: 88.0
The remainder is 31 after subtracting 648 from 679.
Grab the next digit (5) from the dividend, add it to 31, then carry on: 315 / 81

On to step 5:
81 goes into 315 3 times with a remainder of 72.
Put 3 as the next digit of the answer. 
Result so far: 883.0
The remainder is 72 after subtracting 243 from 315.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Going ahead to step 6:
The number 81 fits into 720 8 times, leaving a remainder of 72.
Use 8 as the next digit of our solution. 
Result so far: 883.8
If we subtract 648 from 720, we get 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Let's proceed to step 7:
81 can be fit into 720 8 times, resulting in a remainder of 72.
Put 8 as the next digit of the answer. 
Result so far: 883.88
The remainder is 72 after subtracting 648 from 720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

After the division, we end up with 883.88 and a remainder of 0.072.