We divide 186873 by 77
The aim is to understand the frequency of 77 in 186873.

Advancing to step 1:
77 goes into 1 0 times with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Include the next digit (8) from the dividend after 1, then repeat: 18 / 77

On to step 2:
If we divide 18 by 77, we get 0 and a remainder of 18.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 18 after subtracting 0 from 18.
Append the next digit (6) from the dividend to 18 and continue with: 186 / 77

Moving on to step 3:
If we divide 186 by 77, we get 2 and a remainder of 32.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Subtract 154 from 186 to get 32.
Take the next digit (8) from the dividend and append it to 32, then repeat: 328 / 77

Moving on to step 4:
77 can be fit into 328 4 times, resulting in a remainder of 20.
Use 4 as the next digit of our solution. 
Result so far: 24.0
Deduct 308 from 328 and we're left with 20.
Append the next digit (7) from the dividend to 20 and continue with: 207 / 77

On to step 5:
207 divided by 77 is 2 with a remainder of 53.
Use 2 as the next digit of our solution. 
Result so far: 242.0
Subtracting 154 from 207 leaves us with 53.
Include the next digit (3) from the dividend after 53, then repeat: 533 / 77

Going ahead to step 6:
77 can be fit into 533 6 times, resulting in a remainder of 71.
The number 6 becomes the next digit in our result. 
Result so far: 2426.0
Deduct 462 from 533 and we're left with 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

Advancing to step 7:
77 goes into 710 9 times with a remainder of 17.
Use 9 as the next digit of our solution. 
Result so far: 2426.9
Subtract 693 from 710 to get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Going ahead to step 8:
The number 77 fits into 170 2 times, leaving a remainder of 16.
The next digit of our result is 2. 
Result so far: 2426.92
If we take 154 away from 170, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 9:
160 divided by 77 is 2 with a remainder of 6.
The number 2 becomes the next digit in our result. 
Result so far: 2426.922
Deduct 154 from 160 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

The final result is 2426.922 with a remainder of 0.0006.