We look at the division of 742563 by 84 
The aim is to understand the frequency of 84 in 742563.

Moving on to step 1:
If we divide 7 by 84, we get 0 and a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Grab the next digit (4) from the dividend, add it to 7, then carry on: 74 / 84

On to step 2:
74 divided by 84 is 0 with a remainder of 74.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 74 to get 74.
Append the next digit (2) from the dividend to 74 and continue with: 742 / 84

Step 3:
When dividing 742 by 84, we get 8 with a remainder of 70.
Use 8 as the next digit of our solution. 
Result so far: 8.0
If we subtract 672 from 742, we get 70.
Bring next digit (5) of the dividend behind the 70 and repeat the process: 705 / 84

Advancing to step 4:
When dividing 705 by 84, we get 8 with a remainder of 33.
The number 8 becomes the next digit in our result. 
Result so far: 88.0
If we take 672 away from 705, we end up with 33.
Include the next digit (6) from the dividend after 33, then repeat: 336 / 84

On to step 5:
336 divided by 84 is 4 with a remainder of 0.
Record the quotient 4 as the next digit in the result. 
Result so far: 884.0
If we take 336 away from 336, we end up with 0.
Include the next digit (3) from the dividend after 0, then repeat: 3 / 84

Going ahead to step 6:
The number 84 fits into 3 0 times, leaving a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 8840.0
If we subtract 0 from 3, we get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Going ahead to step 7:
If we divide 30 by 84, we get 0 and a remainder of 30.
The number 0 becomes the next digit in our result. 
Result so far: 8840.0
Subtracting 0 from 30 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 8:
300 divided by 84 is 3 with a remainder of 48.
Write down 3 as next digit of the result. 
Result so far: 8840.03
The remainder is 48 after subtracting 252 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Moving on to step 9:
84 can be fit into 480 5 times, resulting in a remainder of 60.
The next digit of our result is 5. 
Result so far: 8840.035
If we subtract 420 from 480, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Going ahead to step 10:
The number 84 fits into 600 7 times, leaving a remainder of 12.
Write down 7 as next digit of the result. 
Result so far: 8840.0357
The remainder is 12 after subtracting 588 from 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 11:
If we divide 120 by 84, we get 1 and a remainder of 36.
The number 1 becomes the next digit in our result. 
Result so far: 8840.03571
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 12:
360 divided by 84 is 4 with a remainder of 24.
Use 4 as the next digit of our solution. 
Result so far: 8840.035714
Subtracting 336 from 360 leaves us 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.

Let's proceed to step 13:
84 can be fit into 240 2 times, resulting in a remainder of 72.
The number 2 becomes the next digit in our result. 
Result so far: 8840.0357142
Deduct 168 from 240 and we're left 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.

On to step 14:
If we divide 720 by 84, we get 8 and a remainder of 48.
Use 8 as the next digit of our solution. 
Result so far: 8840.03571428
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.

The final result is 8840.03571428 with a remainder of 4.8e-08.