We look at the division of 546378 by 84 
The aim is to understand the frequency of 84 in 546378.

Let's proceed to step 1:
84 can be fit into 5 0 times, resulting in a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Include the next digit (4) from the dividend after 5, then repeat: 54 / 84

Going ahead to step 2:
84 goes into 54 0 times with a remainder of 54.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 54 and we're left with 54.
Include the next digit (6) from the dividend after 54, then repeat: 546 / 84

Going ahead to step 3:
546 divided by 84 is 6 with a remainder of 42.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
Subtracting 504 from 546 leaves us with 42.
Fetch the next digit (3) from the dividend, attach it to 42 and continue: 423 / 84

Let's proceed to step 4:
84 can be fit into 423 5 times, resulting in a remainder of 3.
Put 5 as the next digit of the answer. 
Result so far: 65.0
If we take 420 away from 423, we end up with 3.
Fetch the next digit (7) from the dividend, attach it to 3 and continue: 37 / 84

Going ahead to step 5:
The number 84 fits into 37 0 times, leaving a remainder of 37.
Record the quotient 0 as the next digit in the result. 
Result so far: 650.0
The remainder is 37 after subtracting 0 from 37.
Append the next digit (8) from the dividend to 37 and continue with: 378 / 84

Step 6:
If we divide 378 by 84, we get 4 and a remainder of 42.
Use 4 as the next digit of our solution. 
Result so far: 6504.0
If we take 336 away from 378, we end up with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Moving on to step 7:
When dividing 420 by 84, we get 5 with a remainder of 0.
The next digit of our result is 5. 
Result so far: 6504.5
If we take 420 away from 420, 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.

On to step 8:
84 goes into 0 0 times with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 6504.5
Deduct 0 from 0 and we're left 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 9:
If we divide 0 by 84, we get 0 and a remainder of 0.
The next digit of our result is 0. 
Result so far: 6504.5
The remainder is 0 after subtracting 0 from 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 6504.5, with a leftover of 0.0.