394195 ÷ 81 
The aim is to understand the frequency of 81 in 394195.

Going ahead to step 1:
81 goes into 3 0 times with a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Take the next digit (9) from the dividend and append it to 3, then repeat: 39 / 81

Going ahead to step 2:
39 divided by 81 is 0 with a remainder of 39.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 39 after subtracting 0 from 39.
Fetch the next digit (4) from the dividend, attach it to 39 and continue: 394 / 81

On to step 3:
81 can be fit into 394 4 times, resulting in a remainder of 70.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
Subtract 324 from 394 to get 70.
Grab the next digit (1) from the dividend, add it to 70, then carry on: 701 / 81

Let's proceed to step 4:
If we divide 701 by 81, we get 8 and a remainder of 53.
The number 8 becomes the next digit in our result. 
Result so far: 48.0
Subtract 648 from 701 to get 53.
Bring next digit (9) of the dividend behind the 53 and repeat the process: 539 / 81

Advancing to step 5:
81 can be fit into 539 6 times, resulting in a remainder of 53.
Put 6 as the next digit of the answer. 
Result so far: 486.0
Deduct 486 from 539 and we're left with 53.
Bring next digit (5) of the dividend behind the 53 and repeat the process: 535 / 81

Going ahead to step 6:
81 goes into 535 6 times with a remainder of 49.
The number 6 becomes the next digit in our result. 
Result so far: 4866.0
Subtracting 486 from 535 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.

Going ahead to step 7:
If we divide 490 by 81, we get 6 and a remainder of 4.
The next digit of our result is 6. 
Result so far: 4866.6
The remainder is 4 after subtracting 486 from 490.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 8:
The number 81 fits into 40 0 times, leaving a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 4866.6
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.

Moving on to step 9:
400 divided by 81 is 4 with a remainder of 76.
The number 4 becomes the next digit in our result. 
Result so far: 4866.604
The remainder is 76 after subtracting 324 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Let's proceed to step 10:
If we divide 760 by 81, we get 9 and a remainder of 31.
Record the quotient 9 as the next digit in the result. 
Result so far: 4866.6049
Subtract 729 from 760 to get 31.
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 11:
When dividing 310 by 81, we get 3 with a remainder of 67.
Use 3 as the next digit of our solution. 
Result so far: 4866.60493
The remainder is 67 after subtracting 243 from 310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Step 12:
When dividing 670 by 81, we get 8 with a remainder of 22.
The number 8 becomes the next digit in our result. 
Result so far: 4866.604938
Deduct 648 from 670 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.

Let's proceed to step 13:
When dividing 220 by 81, we get 2 with a remainder of 58.
The next digit of our result is 2. 
Result so far: 4866.6049382
If we subtract 162 from 220, we get 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 14:
If we divide 580 by 81, we get 7 and a remainder of 13.
Write down 7 as next digit of the result. 
Result so far: 4866.60493827
Deduct 567 from 580 and we're left with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

The quotient of the division is 4866.60493827, and the remainder is 1.3e-08.