We're dividing 73281964 by 855 
The aim is to understand the frequency of 855 in 73281964.

Step 1:
The number 855 fits into 7 0 times, leaving a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Fetch the next digit (3) from the dividend, attach it to 7 and continue: 73 / 855

On to step 2:
When dividing 73 by 855, we get 0 with a remainder of 73.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 73 to get 73.
Take the next digit (2) from the dividend and append it to 73, then repeat: 732 / 855

Let's proceed to step 3:
855 can be fit into 732 0 times, resulting in a remainder of 732.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 732 after subtracting 0 from 732.
Fetch the next digit (8) from the dividend, attach it to 732 and continue: 7328 / 855

Advancing to step 4:
855 can be fit into 7328 8 times, resulting in a remainder of 488.
Use 8 as the next digit of our solution. 
Result so far: 8.0
Subtract 6840 from 7328 to get 488.
Bring next digit (1) of the dividend behind the 488 and repeat the process: 4881 / 855

Going ahead to step 5:
If we divide 4881 by 855, we get 5 and a remainder of 606.
The next digit of our result is 5. 
Result so far: 85.0
Deduct 4275 from 4881 and we're left with 606.
Append the next digit (9) from the dividend to 606 and continue with: 6069 / 855

Going ahead to step 6:
The number 855 fits into 6069 7 times, leaving a remainder of 84.
Use 7 as the next digit of our solution. 
Result so far: 857.0
If we subtract 5985 from 6069, we get 84.
Append the next digit (6) from the dividend to 84 and continue with: 846 / 855

Moving on to step 7:
When dividing 846 by 855, we get 0 with a remainder of 846.
Record the quotient 0 as the next digit in the result. 
Result so far: 8570.0
Subtract 0 from 846 to get 846.
Take the next digit (4) from the dividend and append it to 846, then repeat: 8464 / 855

Step 8:
If we divide 8464 by 855, we get 9 and a remainder of 769.
Put 9 as the next digit of the answer. 
Result so far: 85709.0
If we take 7695 away from 8464, we end up with 769.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7690, and continue the process.

Step 9:
855 can be fit into 7690 8 times, resulting in a remainder of 850.
The next digit of our result is 8. 
Result so far: 85709.8
Deduct 6840 from 7690 and we're left with 850.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8500, and continue the process.

Step 10:
8500 divided by 855 is 9 with a remainder of 805.
The next digit of our result is 9. 
Result so far: 85709.89
The remainder is 805 after subtracting 7695 from 8500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8050, and continue the process.

On to step 11:
8050 divided by 855 is 9 with a remainder of 355.
The next digit of our result is 9. 
Result so far: 85709.899
Subtract 7695 from 8050 to get 355.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3550, and continue the process.

The final result is 85709.899 with a remainder of 0.0355.