We're dividing 810761 by 84 
The aim is to understand the frequency of 84 in 810761.

Moving on to step 1:
The number 84 fits into 8 0 times, leaving a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Append the next digit (1) from the dividend to 8 and continue with: 81 / 84

Advancing to step 2:
84 can be fit into 81 0 times, resulting in a remainder of 81.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 81 to get 81.
Grab the next digit (0) from the dividend, add it to 81, then carry on: 810 / 84

Step 3:
84 can be fit into 810 9 times, resulting in a remainder of 54.
Record the quotient 9 as the next digit in the result. 
Result so far: 9.0
If we subtract 756 from 810, we get 54.
Include the next digit (7) from the dividend after 54, then repeat: 547 / 84

Let's proceed to step 4:
The number 84 fits into 547 6 times, leaving a remainder of 43.
Use 6 as the next digit of our solution. 
Result so far: 96.0
Subtract 504 from 547 to get 43.
Include the next digit (6) from the dividend after 43, then repeat: 436 / 84

On to step 5:
If we divide 436 by 84, we get 5 and a remainder of 16.
Write down 5 as next digit of the result. 
Result so far: 965.0
If we take 420 away from 436, we end up with 16.
Fetch the next digit (1) from the dividend, attach it to 16 and continue: 161 / 84

Let's proceed to step 6:
84 goes into 161 1 times with a remainder of 77.
Record the quotient 1 as the next digit in the result. 
Result so far: 9651.0
Subtracting 84 from 161 leaves us with 77.
Since there are no more digits in the dividend, we add a zero to the remainder making it 770, and continue the process.

On to step 7:
If we divide 770 by 84, we get 9 and a remainder of 14.
Put 9 as the next digit of the answer. 
Result so far: 9651.9
Subtract 756 from 770 to get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Step 8:
84 goes into 140 1 times with a remainder of 56.
The next digit of our result is 1. 
Result so far: 9651.91
The remainder is 56 after subtracting 84 from 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Step 9:
84 goes into 560 6 times with a remainder of 56.
The number 6 becomes the next digit in our result. 
Result so far: 9651.916
If we take 504 away from 560, we end up with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Advancing to step 10:
The number 84 fits into 560 6 times, leaving a remainder of 56.
The next digit of our result is 6. 
Result so far: 9651.9166
If we subtract 504 from 560, we get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

After the division, we end up with 9651.9166 and a remainder of 0.00056.