We divide 445659 by 81
The aim is to understand the frequency of 81 in 445659.

Step 1:
The number 81 fits into 4 0 times, leaving a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Append the next digit (4) from the dividend to 4 and continue with: 44 / 81

Advancing to step 2:
44 divided by 81 is 0 with a remainder of 44.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 44, we get 44.
Bring next digit (5) of the dividend behind the 44 and repeat the process: 445 / 81

Moving on to step 3:
If we divide 445 by 81, we get 5 and a remainder of 40.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
Subtract 405 from 445 to get 40.
Take the next digit (6) from the dividend and append it to 40, then repeat: 406 / 81

Moving on to step 4:
The number 81 fits into 406 5 times, leaving a remainder of 1.
The next digit of our result is 5. 
Result so far: 55.0
If we subtract 405 from 406, we get 1.
Take the next digit (5) from the dividend and append it to 1, then repeat: 15 / 81

Step 5:
81 can be fit into 15 0 times, resulting in a remainder of 15.
Write down 0 as next digit of the result. 
Result so far: 550.0
Subtract 0 from 15 to get 15.
Include the next digit (9) from the dividend after 15, then repeat: 159 / 81

Moving on to step 6:
81 can be fit into 159 1 times, resulting in a remainder of 78.
Put 1 as the next digit of the answer. 
Result so far: 5501.0
The remainder is 78 after subtracting 81 from 159.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Step 7:
The number 81 fits into 780 9 times, leaving a remainder of 51.
The next digit of our result is 9. 
Result so far: 5501.9
If we subtract 729 from 780, we get 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Step 8:
When dividing 510 by 81, we get 6 with a remainder of 24.
The next digit of our result is 6. 
Result so far: 5501.96
Subtract 486 from 510 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Moving on to step 9:
If we divide 240 by 81, we get 2 and a remainder of 78.
Write down 2 as next digit of the result. 
Result so far: 5501.962
The remainder is 78 after subtracting 162 from 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Advancing to step 10:
780 divided by 81 is 9 with a remainder of 51.
The next digit of our result is 9. 
Result so far: 5501.9629
Subtracting 729 from 780 leaves us with 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Step 11:
510 divided by 81 is 6 with a remainder of 24.
The next digit of our result is 6. 
Result so far: 5501.96296
Subtracting 486 from 510 leaves us with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Going ahead to step 12:
81 goes into 240 2 times with a remainder of 78.
The number 2 becomes the next digit in our result. 
Result so far: 5501.962962
If we subtract 162 from 240, we get 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Advancing to step 13:
81 can be fit into 780 9 times, resulting in a remainder of 51.
Write down 9 as next digit of the result. 
Result so far: 5501.9629629
Deduct 729 from 780 and we're left with 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

On to step 14:
81 goes into 510 6 times with a remainder of 24.
The next digit of our result is 6. 
Result so far: 5501.96296296
Deduct 486 from 510 and we're left with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

After the division, we end up with 5501.96296296 and a remainder of 2.4e-08.