We look at the division of 764905 by 84 
The aim is to understand the frequency of 84 in 764905.

Let's proceed to step 1:
When dividing 7 by 84, we get 0 with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Grab the next digit (6) from the dividend, add it to 7, then carry on: 76 / 84

Going ahead to step 2:
76 divided by 84 is 0 with a remainder of 76.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 76 and we're left with 76.
Bring next digit (4) of the dividend behind the 76 and repeat the process: 764 / 84

Step 3:
84 can be fit into 764 9 times, resulting in a remainder of 8.
Use 9 as the next digit of our solution. 
Result so far: 9.0
If we subtract 756 from 764, we get 8.
Fetch the next digit (9) from the dividend, attach it to 8 and continue: 89 / 84

Going ahead to step 4:
When dividing 89 by 84, we get 1 with a remainder of 5.
Use 1 as the next digit of our solution. 
Result so far: 91.0
Subtracting 84 from 89 leaves us with 5.
Bring next digit (0) of the dividend behind the 5 and repeat the process: 50 / 84

Step 5:
84 can be fit into 50 0 times, resulting in a remainder of 50.
Put 0 as the next digit of the answer. 
Result so far: 910.0
The remainder is 50 after subtracting 0 from 50.
Bring next digit (5) of the dividend behind the 50 and repeat the process: 505 / 84

Going ahead to step 6:
84 goes into 505 6 times with a remainder of 1.
Put 6 as the next digit of the answer. 
Result so far: 9106.0
Subtracting 504 from 505 leaves us 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.

Advancing to step 7:
If we divide 10 by 84, we get 0 and a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 9106.0
The remainder is 10 after subtracting 0 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 8:
84 goes into 100 1 times with a remainder of 16.
Record the quotient 1 as the next digit in the result. 
Result so far: 9106.01
Subtracting 84 from 100 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 9:
160 divided by 84 is 1 with a remainder of 76.
The next digit of our result is 1. 
Result so far: 9106.011
The remainder is 76 after subtracting 84 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

The quotient of the division is 9106.011, and the remainder is 0.0076.