725330 divided by 84 
The aim is to understand the frequency of 84 in 725330.

Step 1:
If we divide 7 by 84, we get 0 and a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Grab the next digit (2) from the dividend, add it to 7, then carry on: 72 / 84

Moving on to step 2:
The number 84 fits into 72 0 times, leaving a remainder of 72.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 72 leaves us with 72.
Include the next digit (5) from the dividend after 72, then repeat: 725 / 84

Moving on to step 3:
If we divide 725 by 84, we get 8 and a remainder of 53.
Write down 8 as next digit of the result. 
Result so far: 8.0
If we subtract 672 from 725, we get 53.
Take the next digit (3) from the dividend and append it to 53, then repeat: 533 / 84

Advancing to step 4:
The number 84 fits into 533 6 times, leaving a remainder of 29.
The next digit of our result is 6. 
Result so far: 86.0
If we subtract 504 from 533, we get 29.
Include the next digit (3) from the dividend after 29, then repeat: 293 / 84

Let's proceed to step 5:
The number 84 fits into 293 3 times, leaving a remainder of 41.
Put 3 as the next digit of the answer. 
Result so far: 863.0
The remainder is 41 after subtracting 252 from 293.
Take the next digit (0) from the dividend and append it to 41, then repeat: 410 / 84

On to step 6:
The number 84 fits into 410 4 times, leaving a remainder of 74.
The number 4 becomes the next digit in our result. 
Result so far: 8634.0
Subtracting 336 from 410 leaves us with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Moving on to step 7:
84 goes into 740 8 times with a remainder of 68.
Put 8 as the next digit of the answer. 
Result so far: 8634.8
The remainder is 68 after subtracting 672 from 740.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Let's proceed to step 8:
When dividing 680 by 84, we get 8 with a remainder of 8.
Record the quotient 8 as the next digit in the result. 
Result so far: 8634.88
Deduct 672 from 680 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Our division results in 8634.88 with a remaining 0.008.