683793 divided by 81 
The aim is to understand the frequency of 81 in 683793.

Step 1:
81 goes into 6 0 times with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Append the next digit (8) from the dividend to 6 and continue with: 68 / 81

Advancing to step 2:
The number 81 fits into 68 0 times, leaving a remainder of 68.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 68 to get 68.
Include the next digit (3) from the dividend after 68, then repeat: 683 / 81

Advancing to step 3:
683 divided by 81 is 8 with a remainder of 35.
Use 8 as the next digit of our solution. 
Result so far: 8.0
Subtract 648 from 683 to get 35.
Take the next digit (7) from the dividend and append it to 35, then repeat: 357 / 81

Let's proceed to step 4:
357 divided by 81 is 4 with a remainder of 33.
Write down 4 as next digit of the result. 
Result so far: 84.0
Subtracting 324 from 357 leaves us with 33.
Grab the next digit (9) from the dividend, add it to 33, then carry on: 339 / 81

Let's proceed to step 5:
81 goes into 339 4 times with a remainder of 15.
Write down 4 as next digit of the result. 
Result so far: 844.0
Subtracting 324 from 339 leaves us with 15.
Append the next digit (3) from the dividend to 15 and continue with: 153 / 81

On to step 6:
If we divide 153 by 81, we get 1 and a remainder of 72.
Write down 1 as next digit of the result. 
Result so far: 8441.0
The remainder is 72 after subtracting 81 from 153.
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 7:
81 goes into 720 8 times with a remainder of 72.
The number 8 becomes the next digit in our result. 
Result so far: 8441.8
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.

On to step 8:
81 goes into 720 8 times with a remainder of 72.
Use 8 as the next digit of our solution. 
Result so far: 8441.88
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.

Our division results in 8441.88 with a remaining 0.072.