We look at the division of 146543 by 84 
The aim is to understand the frequency of 84 in 146543.

Going ahead to step 1:
When dividing 1 by 84, we get 0 with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Bring next digit (4) of the dividend behind the 1 and repeat the process: 14 / 84

Let's proceed to step 2:
If we divide 14 by 84, we get 0 and a remainder of 14.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 14 and we're left with 14.
Fetch the next digit (6) from the dividend, attach it to 14 and continue: 146 / 84

Step 3:
If we divide 146 by 84, we get 1 and a remainder of 62.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 84 from 146 leaves us with 62.
Take the next digit (5) from the dividend and append it to 62, then repeat: 625 / 84

Going ahead to step 4:
625 divided by 84 is 7 with a remainder of 37.
The number 7 becomes the next digit in our result. 
Result so far: 17.0
If we take 588 away from 625, we end up with 37.
Append the next digit (4) from the dividend to 37 and continue with: 374 / 84

Going ahead to step 5:
84 can be fit into 374 4 times, resulting in a remainder of 38.
Record the quotient 4 as the next digit in the result. 
Result so far: 174.0
Subtract 336 from 374 to get 38.
Fetch the next digit (3) from the dividend, attach it to 38 and continue: 383 / 84

Going ahead to step 6:
84 goes into 383 4 times with a remainder of 47.
Put 4 as the next digit of the answer. 
Result so far: 1744.0
Deduct 336 from 383 and we're left with 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Let's proceed to step 7:
84 can be fit into 470 5 times, resulting in a remainder of 50.
Put 5 as the next digit of the answer. 
Result so far: 1744.5
Deduct 420 from 470 and we're left with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Let's proceed to step 8:
84 goes into 500 5 times with a remainder of 80.
Use 5 as the next digit of our solution. 
Result so far: 1744.55
If we subtract 420 from 500, we get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

After the division, we end up with 1744.55 and a remainder of 0.08.