We look at the division of 424678 by 84 
The aim is to understand the frequency of 84 in 424678.

Let's proceed to step 1:
84 can be fit into 4 0 times, resulting in a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Include the next digit (2) from the dividend after 4, then repeat: 42 / 84

Going ahead to step 2:
84 goes into 42 0 times with a remainder of 42.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 42 and we're left with 42.
Fetch the next digit (4) from the dividend, attach it to 42 and continue: 424 / 84

Going ahead to step 3:
When dividing 424 by 84, we get 5 with a remainder of 4.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
If we take 420 away from 424, we end up with 4.
Take the next digit (6) from the dividend and append it to 4, then repeat: 46 / 84

Moving on to step 4:
46 divided by 84 is 0 with a remainder of 46.
Record the quotient 0 as the next digit in the result. 
Result so far: 50.0
Subtracting 0 from 46 leaves us with 46.
Bring next digit (7) of the dividend behind the 46 and repeat the process: 467 / 84

Going ahead to step 5:
84 goes into 467 5 times with a remainder of 47.
Write down 5 as next digit of the result. 
Result so far: 505.0
If we take 420 away from 467, we end up with 47.
Fetch the next digit (8) from the dividend, attach it to 47 and continue: 478 / 84

Let's proceed to step 6:
If we divide 478 by 84, we get 5 and a remainder of 58.
Use 5 as the next digit of our solution. 
Result so far: 5055.0
The remainder is 58 after subtracting 420 from 478.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Moving on to step 7:
84 goes into 580 6 times with a remainder of 76.
Record the quotient 6 as the next digit in the result. 
Result so far: 5055.6
The remainder is 76 after subtracting 504 from 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

On to step 8:
760 divided by 84 is 9 with a remainder of 4.
Write down 9 as next digit of the result. 
Result so far: 5055.69
If we subtract 756 from 760, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 9:
If we divide 40 by 84, we get 0 and a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 5055.69
If we subtract 0 from 40, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 10:
84 goes into 400 4 times with a remainder of 64.
The number 4 becomes the next digit in our result. 
Result so far: 5055.6904
Subtracting 336 from 400 leaves us with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Moving on to step 11:
84 can be fit into 640 7 times, resulting in a remainder of 52.
Put 7 as the next digit of the answer. 
Result so far: 5055.69047
If we subtract 588 from 640, we get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Going ahead to step 12:
84 can be fit into 520 6 times, resulting in a remainder of 16.
Use 6 as the next digit of our solution. 
Result so far: 5055.690476
If we take 504 away from 520, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 13:
160 divided by 84 is 1 with a remainder of 76.
Put 1 as the next digit of the answer. 
Result so far: 5055.6904761
The remainder is 76 after subtracting 84 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Moving on to step 14:
760 divided by 84 is 9 with a remainder of 4.
The next digit of our result is 9. 
Result so far: 5055.69047619
The remainder is 4 after subtracting 756 from 760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Our division results in 5055.69047619 with a remaining 4e-09.