We look at the division of 613811 by 84 
The aim is to understand the frequency of 84 in 613811.

Going ahead to step 1:
When dividing 6 by 84, we get 0 with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Bring next digit (1) of the dividend behind the 6 and repeat the process: 61 / 84

Moving on to step 2:
84 can be fit into 61 0 times, resulting in a remainder of 61.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 61, we get 61.
Bring next digit (3) of the dividend behind the 61 and repeat the process: 613 / 84

Going ahead to step 3:
84 goes into 613 7 times with a remainder of 25.
Use 7 as the next digit of our solution. 
Result so far: 7.0
If we take 588 away from 613, we end up with 25.
Take the next digit (8) from the dividend and append it to 25, then repeat: 258 / 84

Going ahead to step 4:
258 divided by 84 is 3 with a remainder of 6.
Write down 3 as next digit of the result. 
Result so far: 73.0
If we take 252 away from 258, we end up with 6.
Fetch the next digit (1) from the dividend, attach it to 6 and continue: 61 / 84

Let's proceed to step 5:
The number 84 fits into 61 0 times, leaving a remainder of 61.
Write down 0 as next digit of the result. 
Result so far: 730.0
If we subtract 0 from 61, we get 61.
Include the next digit (1) from the dividend after 61, then repeat: 611 / 84

Step 6:
611 divided by 84 is 7 with a remainder of 23.
The number 7 becomes the next digit in our result. 
Result so far: 7307.0
If we subtract 588 from 611, we get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

On to step 7:
230 divided by 84 is 2 with a remainder of 62.
The number 2 becomes the next digit in our result. 
Result so far: 7307.2
The remainder is 62 after subtracting 168 from 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

On to step 8:
620 divided by 84 is 7 with a remainder of 32.
The number 7 becomes the next digit in our result. 
Result so far: 7307.27
If we subtract 588 from 620, we get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Let's proceed to step 9:
84 can be fit into 320 3 times, resulting in a remainder of 68.
The number 3 becomes the next digit in our result. 
Result so far: 7307.273
If we subtract 252 from 320, we get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Going ahead to step 10:
When dividing 680 by 84, we get 8 with a remainder of 8.
Record the quotient 8 as the next digit in the result. 
Result so far: 7307.2738
If we take 672 away from 680, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 11:
80 divided by 84 is 0 with a remainder of 80.
Use 0 as the next digit of our solution. 
Result so far: 7307.2738
Deduct 0 from 80 and we're left with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

On to step 12:
When dividing 800 by 84, we get 9 with a remainder of 44.
Put 9 as the next digit of the answer. 
Result so far: 7307.273809
If we subtract 756 from 800, we get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Going ahead to step 13:
If we divide 440 by 84, we get 5 and a remainder of 20.
Write down 5 as next digit of the result. 
Result so far: 7307.2738095
Deduct 420 from 440 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 14:
The number 84 fits into 200 2 times, leaving a remainder of 32.
Use 2 as the next digit of our solution. 
Result so far: 7307.27380952
The remainder is 32 after subtracting 168 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

The final outcome is 7307.27380952, with a leftover of 3.2e-08.