We divide 754263 by 81
The aim is to understand the frequency of 81 in 754263.

Going ahead to step 1:
The number 81 fits into 7 0 times, leaving a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Include the next digit (5) from the dividend after 7, then repeat: 75 / 81

Going ahead to step 2:
If we divide 75 by 81, we get 0 and a remainder of 75.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 75, we end up with 75.
Take the next digit (4) from the dividend and append it to 75, then repeat: 754 / 81

Let's proceed to step 3:
81 goes into 754 9 times with a remainder of 25.
The number 9 becomes the next digit in our result. 
Result so far: 9.0
Subtract 729 from 754 to get 25.
Fetch the next digit (2) from the dividend, attach it to 25 and continue: 252 / 81

Going ahead to step 4:
81 goes into 252 3 times with a remainder of 9.
The next digit of our result is 3. 
Result so far: 93.0
Subtract 243 from 252 to get 9.
Bring next digit (6) of the dividend behind the 9 and repeat the process: 96 / 81

Moving on to step 5:
The number 81 fits into 96 1 times, leaving a remainder of 15.
Put 1 as the next digit of the answer. 
Result so far: 931.0
The remainder is 15 after subtracting 81 from 96.
Bring next digit (3) of the dividend behind the 15 and repeat the process: 153 / 81

Let's proceed to step 6:
153 divided by 81 is 1 with a remainder of 72.
Use 1 as the next digit of our solution. 
Result so far: 9311.0
Subtract 81 from 153 to 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.

On 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: 9311.8
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.

Step 8:
81 can be fit into 720 8 times, resulting in a remainder of 72.
The number 8 becomes the next digit in our result. 
Result so far: 9311.88
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.

The quotient of the division is 9311.88, and the remainder is 0.072.