We look at the division of 122943 by 84 
The aim is to understand the frequency of 84 in 122943.

Advancing to step 1:
1 divided by 84 is 0 with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Take the next digit (2) from the dividend and append it to 1, then repeat: 12 / 84

Going ahead to step 2:
84 goes into 12 0 times with a remainder of 12.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 12 leaves us with 12.
Grab the next digit (2) from the dividend, add it to 12, then carry on: 122 / 84

Moving on to step 3:
84 can be fit into 122 1 times, resulting in a remainder of 38.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtract 84 from 122 to get 38.
Take the next digit (9) from the dividend and append it to 38, then repeat: 389 / 84

Let's proceed to step 4:
84 goes into 389 4 times with a remainder of 53.
Put 4 as the next digit of the answer. 
Result so far: 14.0
The remainder is 53 after subtracting 336 from 389.
Bring next digit (4) of the dividend behind the 53 and repeat the process: 534 / 84

Let's proceed to step 5:
534 divided by 84 is 6 with a remainder of 30.
The next digit of our result is 6. 
Result so far: 146.0
If we take 504 away from 534, we end up with 30.
Bring next digit (3) of the dividend behind the 30 and repeat the process: 303 / 84

Going ahead to step 6:
84 goes into 303 3 times with a remainder of 51.
Put 3 as the next digit of the answer. 
Result so far: 1463.0
If we take 252 away from 303, we end up with 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Going ahead to step 7:
If we divide 510 by 84, we get 6 and a remainder of 6.
The number 6 becomes the next digit in our result. 
Result so far: 1463.6
If we take 504 away from 510, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 8:
When dividing 60 by 84, we get 0 with a remainder of 60.
Write down 0 as next digit of the result. 
Result so far: 1463.6
The remainder is 60 after subtracting 0 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 9:
600 divided by 84 is 7 with a remainder of 12.
Write down 7 as next digit of the result. 
Result so far: 1463.607
Subtract 588 from 600 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Step 10:
When dividing 120 by 84, we get 1 with a remainder of 36.
The next digit of our result is 1. 
Result so far: 1463.6071
If we subtract 84 from 120, we get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Moving on to step 11:
360 divided by 84 is 4 with a remainder of 24.
Put 4 as the next digit of the answer. 
Result so far: 1463.60714
Deduct 336 from 360 and we're left with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Advancing to step 12:
If we divide 240 by 84, we get 2 and a remainder of 72.
The number 2 becomes the next digit in our result. 
Result so far: 1463.607142
Subtracting 168 from 240 leaves us with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Moving on to step 13:
When dividing 720 by 84, we get 8 with a remainder of 48.
Use 8 as the next digit of our solution. 
Result so far: 1463.6071428
If we subtract 672 from 720, we get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Step 14:
84 goes into 480 5 times with a remainder of 60.
Write down 5 as next digit of the result. 
Result so far: 1463.60714285
Subtracting 420 from 480 leaves us with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

The final result is 1463.60714285 with a remainder of 6e-08.