609346 ÷ 81 
The aim is to understand the frequency of 81 in 609346.

Going ahead to step 1:
81 can be fit into 6 0 times, resulting in a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Take the next digit (0) from the dividend and append it to 6, then repeat: 60 / 81

Going ahead to step 2:
60 divided by 81 is 0 with a remainder of 60.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 60 after subtracting 0 from 60.
Append the next digit (9) from the dividend to 60 and continue with: 609 / 81

Moving on to step 3:
81 can be fit into 609 7 times, resulting in a remainder of 42.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
Subtract 567 from 609 to get 42.
Take the next digit (3) from the dividend and append it to 42, then repeat: 423 / 81

Moving on to step 4:
The number 81 fits into 423 5 times, leaving a remainder of 18.
Write down 5 as next digit of the result. 
Result so far: 75.0
If we subtract 405 from 423, we get 18.
Include the next digit (4) from the dividend after 18, then repeat: 184 / 81

Going ahead to step 5:
184 divided by 81 is 2 with a remainder of 22.
The number 2 becomes the next digit in our result. 
Result so far: 752.0
If we subtract 162 from 184, we get 22.
Append the next digit (6) from the dividend to 22 and continue with: 226 / 81

Advancing to step 6:
81 goes into 226 2 times with a remainder of 64.
Use 2 as the next digit of our solution. 
Result so far: 7522.0
If we subtract 162 from 226, we get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

On to step 7:
81 goes into 640 7 times with a remainder of 73.
The next digit of our result is 7. 
Result so far: 7522.7
Subtracting 567 from 640 leaves us with 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

Let's proceed to step 8:
81 goes into 730 9 times with a remainder of 1.
The next digit of our result is 9. 
Result so far: 7522.79
If we take 729 away from 730, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Moving on to step 9:
When dividing 10 by 81, we get 0 with a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 7522.79
Deduct 0 from 10 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 10:
81 goes into 100 1 times with a remainder of 19.
Put 1 as the next digit of the answer. 
Result so far: 7522.7901
If we take 81 away from 100, we end up with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Advancing to step 11:
81 can be fit into 190 2 times, resulting in a remainder of 28.
The next digit of our result is 2. 
Result so far: 7522.79012
The remainder is 28 after subtracting 162 from 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Let's proceed to step 12:
81 goes into 280 3 times with a remainder of 37.
The next digit of our result is 3. 
Result so far: 7522.790123
Deduct 243 from 280 and we're left with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Advancing to step 13:
370 divided by 81 is 4 with a remainder of 46.
The number 4 becomes the next digit in our result. 
Result so far: 7522.7901234
The remainder is 46 after subtracting 324 from 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Let's proceed to step 14:
The number 81 fits into 460 5 times, leaving a remainder of 55.
Write down 5 as next digit of the result. 
Result so far: 7522.79012345
Subtract 405 from 460 to get 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

The quotient of the division is 7522.79012345, and the remainder is 5.5e-08.