We look at the division of 412407 by 84 
The aim is to understand the frequency of 84 in 412407.

Going ahead to step 1:
4 divided by 84 is 0 with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Include the next digit (1) from the dividend after 4, then repeat: 41 / 84

On to step 2:
84 can be fit into 41 0 times, resulting in a remainder of 41.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 41 to get 41.
Take the next digit (2) from the dividend and append it to 41, then repeat: 412 / 84

Let's proceed to step 3:
When dividing 412 by 84, we get 4 with a remainder of 76.
Use 4 as the next digit of our solution. 
Result so far: 4.0
Deduct 336 from 412 and we're left with 76.
Grab the next digit (4) from the dividend, add it to 76, then carry on: 764 / 84

Going ahead to step 4:
When dividing 764 by 84, we get 9 with a remainder of 8.
Use 9 as the next digit of our solution. 
Result so far: 49.0
If we take 756 away from 764, we end up with 8.
Include the next digit (0) from the dividend after 8, then repeat: 80 / 84

Moving on to step 5:
If we divide 80 by 84, we get 0 and a remainder of 80.
The number 0 becomes the next digit in our result. 
Result so far: 490.0
Subtracting 0 from 80 leaves us with 80.
Append the next digit (7) from the dividend to 80 and continue with: 807 / 84

Step 6:
84 goes into 807 9 times with a remainder of 51.
The next digit of our result is 9. 
Result so far: 4909.0
If we subtract 756 from 807, we get 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.
Put 6 as the next digit of the answer. 
Result so far: 4909.6
If we subtract 504 from 510, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 8:
The number 84 fits into 60 0 times, leaving a remainder of 60.
The number 0 becomes the next digit in our result. 
Result so far: 4909.6
Subtracting 0 from 60 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.

Going ahead to step 9:
When dividing 600 by 84, we get 7 with a remainder of 12.
Write down 7 as next digit of the result. 
Result so far: 4909.607
If we take 588 away from 600, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 10:
84 goes into 120 1 times with a remainder of 36.
The next digit of our result is 1. 
Result so far: 4909.6071
If we take 84 away from 120, we end up with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Step 11:
84 goes into 360 4 times with a remainder of 24.
Write down 4 as next digit of the result. 
Result so far: 4909.60714
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.

Moving on to step 12:
84 can be fit into 240 2 times, resulting in a remainder of 72.
Use 2 as the next digit of our solution. 
Result so far: 4909.607142
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.

Moving on to step 13:
720 divided by 84 is 8 with a remainder of 48.
The next digit of our result is 8. 
Result so far: 4909.6071428
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.

Going ahead to step 14:
84 goes into 480 5 times with a remainder of 60.
The number 5 becomes the next digit in our result. 
Result so far: 4909.60714285
Subtract 420 from 480 to 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.

In conclusion, the division gives 4909.60714285 with a balance of 6e-08.