We look at the division of 109006 by 77 
The aim is to understand the frequency of 77 in 109006.

Let's proceed to step 1:
77 goes into 1 0 times with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Include the next digit (0) from the dividend after 1, then repeat: 10 / 77

On to step 2:
The number 77 fits into 10 0 times, leaving a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 10 and we're left with 10.
Include the next digit (9) from the dividend after 10, then repeat: 109 / 77

Step 3:
The number 77 fits into 109 1 times, leaving a remainder of 32.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 77 from 109 and we're left with 32.
Bring next digit (0) of the dividend behind the 32 and repeat the process: 320 / 77

Going ahead to step 4:
The number 77 fits into 320 4 times, leaving a remainder of 12.
Put 4 as the next digit of the answer. 
Result so far: 14.0
If we take 308 away from 320, we end up with 12.
Take the next digit (0) from the dividend and append it to 12, then repeat: 120 / 77

Going ahead to step 5:
77 can be fit into 120 1 times, resulting in a remainder of 43.
Write down 1 as next digit of the result. 
Result so far: 141.0
Subtracting 77 from 120 leaves us with 43.
Bring next digit (6) of the dividend behind the 43 and repeat the process: 436 / 77

Let's proceed to step 6:
77 goes into 436 5 times with a remainder of 51.
Record the quotient 5 as the next digit in the result. 
Result so far: 1415.0
Deduct 385 from 436 and we're left with 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Advancing to step 7:
The number 77 fits into 510 6 times, leaving a remainder of 48.
Record the quotient 6 as the next digit in the result. 
Result so far: 1415.6
Subtract 462 from 510 to 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.

Let's proceed to step 8:
When dividing 480 by 77, we get 6 with a remainder of 18.
Record the quotient 6 as the next digit in the result. 
Result so far: 1415.66
If we subtract 462 from 480, we get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

The final result is 1415.66 with a remainder of 0.018.