We look at the division of 814393 by 67 
The aim is to understand the frequency of 67 in 814393.

Step 1:
When dividing 8 by 67, we get 0 with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Include the next digit (1) from the dividend after 8, then repeat: 81 / 67

Moving on to step 2:
67 goes into 81 1 times with a remainder of 14.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 14 after subtracting 67 from 81.
Fetch the next digit (4) from the dividend, attach it to 14 and continue: 144 / 67

On to step 3:
If we divide 144 by 67, we get 2 and a remainder of 10.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
The remainder is 10 after subtracting 134 from 144.
Take the next digit (3) from the dividend and append it to 10, then repeat: 103 / 67

On to step 4:
67 goes into 103 1 times with a remainder of 36.
Use 1 as the next digit of our solution. 
Result so far: 121.0
Subtracting 67 from 103 leaves us with 36.
Grab the next digit (9) from the dividend, add it to 36, then carry on: 369 / 67

Going ahead to step 5:
67 goes into 369 5 times with a remainder of 34.
The number 5 becomes the next digit in our result. 
Result so far: 1215.0
Subtract 335 from 369 to get 34.
Grab the next digit (3) from the dividend, add it to 34, then carry on: 343 / 67

On to step 6:
67 goes into 343 5 times with a remainder of 8.
The next digit of our result is 5. 
Result so far: 12155.0
If we take 335 away from 343, 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.

Let's proceed to step 7:
67 can be fit into 80 1 times, resulting in a remainder of 13.
The number 1 becomes the next digit in our result. 
Result so far: 12155.1
Deduct 67 from 80 and we're left with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Advancing to step 8:
The number 67 fits into 130 1 times, leaving a remainder of 63.
Use 1 as the next digit of our solution. 
Result so far: 12155.11
If we subtract 67 from 130, we get 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Our division results in 12155.11 with a remaining 0.063.