Let's divide 964217 by 81
The aim is to understand the frequency of 81 in 964217.

Step 1:
9 divided by 81 is 0 with a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Fetch the next digit (6) from the dividend, attach it to 9 and continue: 96 / 81

Let's proceed to step 2:
The number 81 fits into 96 1 times, leaving a remainder of 15.
The next digit of our result is 1. 
Result so far: 1.0
The remainder is 15 after subtracting 81 from 96.
Take the next digit (4) from the dividend and append it to 15, then repeat: 154 / 81

Moving on to step 3:
If we divide 154 by 81, we get 1 and a remainder of 73.
The number 1 becomes the next digit in our result. 
Result so far: 11.0
The remainder is 73 after subtracting 81 from 154.
Fetch the next digit (2) from the dividend, attach it to 73 and continue: 732 / 81

Advancing to step 4:
732 divided by 81 is 9 with a remainder of 3.
Put 9 as the next digit of the answer. 
Result so far: 119.0
Deduct 729 from 732 and we're left with 3.
Append the next digit (1) from the dividend to 3 and continue with: 31 / 81

Advancing to step 5:
When dividing 31 by 81, we get 0 with a remainder of 31.
Write down 0 as next digit of the result. 
Result so far: 1190.0
Subtract 0 from 31 to get 31.
Bring next digit (7) of the dividend behind the 31 and repeat the process: 317 / 81

Let's proceed to step 6:
If we divide 317 by 81, we get 3 and a remainder of 74.
Use 3 as the next digit of our solution. 
Result so far: 11903.0
Subtracting 243 from 317 leaves us with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Advancing to step 7:
740 divided by 81 is 9 with a remainder of 11.
The next digit of our result is 9. 
Result so far: 11903.9
Deduct 729 from 740 and we're left with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Let's proceed to step 8:
If we divide 110 by 81, we get 1 and a remainder of 29.
The next digit of our result is 1. 
Result so far: 11903.91
The remainder is 29 after subtracting 81 from 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Step 9:
81 can be fit into 290 3 times, resulting in a remainder of 47.
The next digit of our result is 3. 
Result so far: 11903.913
If we subtract 243 from 290, we get 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Advancing to step 10:
If we divide 470 by 81, we get 5 and a remainder of 65.
The next digit of our result is 5. 
Result so far: 11903.9135
If we take 405 away from 470, we end up with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Moving on to step 11:
If we divide 650 by 81, we get 8 and a remainder of 2.
Record the quotient 8 as the next digit in the result. 
Result so far: 11903.91358
If we subtract 648 from 650, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 12:
The number 81 fits into 20 0 times, leaving a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 11903.91358
Subtract 0 from 20 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 13:
If we divide 200 by 81, we get 2 and a remainder of 38.
The next digit of our result is 2. 
Result so far: 11903.9135802
The remainder is 38 after subtracting 162 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Advancing to step 14:
380 divided by 81 is 4 with a remainder of 56.
Write down 4 as next digit of the result. 
Result so far: 11903.91358024
The remainder is 56 after subtracting 324 from 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

In conclusion, the division gives 11903.91358024 with a balance of 5.6e-08.