We look at the division of 630756 by 84 
The aim is to understand the frequency of 84 in 630756.

Step 1:
84 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
The remainder is 6 after subtracting 0 from 6.
Include the next digit (3) from the dividend after 6, then repeat: 63 / 84

Let's proceed to step 2:
The number 84 fits into 63 0 times, leaving a remainder of 63.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 63 to get 63.
Include the next digit (0) from the dividend after 63, then repeat: 630 / 84

On to step 3:
The number 84 fits into 630 7 times, leaving a remainder of 42.
Write down 7 as next digit of the result. 
Result so far: 7.0
If we subtract 588 from 630, we get 42.
Include the next digit (7) from the dividend after 42, then repeat: 427 / 84

Advancing to step 4:
84 goes into 427 5 times with a remainder of 7.
Use 5 as the next digit of our solution. 
Result so far: 75.0
Subtracting 420 from 427 leaves us with 7.
Bring next digit (5) of the dividend behind the 7 and repeat the process: 75 / 84

Let's proceed to step 5:
84 goes into 75 0 times with a remainder of 75.
The number 0 becomes the next digit in our result. 
Result so far: 750.0
If we subtract 0 from 75, we get 75.
Bring next digit (6) of the dividend behind the 75 and repeat the process: 756 / 84

Advancing to step 6:
The number 84 fits into 756 9 times, leaving a remainder of 0.
The next digit of our result is 9. 
Result so far: 7509.0
If we take 756 away from 756, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 7:
84 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 7509.0
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 8:
When dividing 0 by 84, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 7509.0
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 7509.0, with a leftover of 0.0.