364117 ÷ 81 
The aim is to understand the frequency of 81 in 364117.

On to step 1:
The number 81 fits into 3 0 times, leaving a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Bring next digit (6) of the dividend behind the 3 and repeat the process: 36 / 81

Going ahead to step 2:
36 divided by 81 is 0 with a remainder of 36.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 36, we get 36.
Fetch the next digit (4) from the dividend, attach it to 36 and continue: 364 / 81

Going ahead to step 3:
If we divide 364 by 81, we get 4 and a remainder of 40.
Put 4 as the next digit of the answer. 
Result so far: 4.0
Subtract 324 from 364 to get 40.
Append the next digit (1) from the dividend to 40 and continue with: 401 / 81

Step 4:
81 can be fit into 401 4 times, resulting in a remainder of 77.
The number 4 becomes the next digit in our result. 
Result so far: 44.0
Subtract 324 from 401 to get 77.
Fetch the next digit (1) from the dividend, attach it to 77 and continue: 771 / 81

On to step 5:
The number 81 fits into 771 9 times, leaving a remainder of 42.
Record the quotient 9 as the next digit in the result. 
Result so far: 449.0
If we subtract 729 from 771, we get 42.
Take the next digit (7) from the dividend and append it to 42, then repeat: 427 / 81

Advancing to step 6:
The number 81 fits into 427 5 times, leaving a remainder of 22.
The number 5 becomes the next digit in our result. 
Result so far: 4495.0
Deduct 405 from 427 and we're left with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Going ahead to step 7:
220 divided by 81 is 2 with a remainder of 58.
Put 2 as the next digit of the answer. 
Result so far: 4495.2
If we take 162 away from 220, we end up with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Step 8:
The number 81 fits into 580 7 times, leaving a remainder of 13.
Put 7 as the next digit of the answer. 
Result so far: 4495.27
The remainder is 13 after subtracting 567 from 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Step 9:
When dividing 130 by 81, we get 1 with a remainder of 49.
Record the quotient 1 as the next digit in the result. 
Result so far: 4495.271
Subtracting 81 from 130 leaves us with 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Let's proceed to step 10:
81 goes into 490 6 times with a remainder of 4.
The number 6 becomes the next digit in our result. 
Result so far: 4495.2716
If we subtract 486 from 490, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 11:
If we divide 40 by 81, we get 0 and a remainder of 40.
Put 0 as the next digit of the answer. 
Result so far: 4495.2716
Deduct 0 from 40 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 12:
The number 81 fits into 400 4 times, leaving a remainder of 76.
Put 4 as the next digit of the answer. 
Result so far: 4495.271604
Subtract 324 from 400 to get 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Going ahead to step 13:
760 divided by 81 is 9 with a remainder of 31.
Use 9 as the next digit of our solution. 
Result so far: 4495.2716049
The remainder is 31 after subtracting 729 from 760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

On to step 14:
The number 81 fits into 310 3 times, leaving a remainder of 67.
Put 3 as the next digit of the answer. 
Result so far: 4495.27160493
Deduct 243 from 310 and we're left with 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Our division results in 4495.27160493 with a remaining 6.7e-08.