We're dividing 868258 by 77 
The aim is to understand the frequency of 77 in 868258.

Going ahead to step 1:
77 can be fit into 8 0 times, resulting in a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Fetch the next digit (6) from the dividend, attach it to 8 and continue: 86 / 77

Advancing to step 2:
If we divide 86 by 77, we get 1 and a remainder of 9.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 77 from 86, we get 9.
Include the next digit (8) from the dividend after 9, then repeat: 98 / 77

Advancing to step 3:
98 divided by 77 is 1 with a remainder of 21.
The number 1 becomes the next digit in our result. 
Result so far: 11.0
Deduct 77 from 98 and we're left with 21.
Take the next digit (2) from the dividend and append it to 21, then repeat: 212 / 77

Going ahead to step 4:
The number 77 fits into 212 2 times, leaving a remainder of 58.
Put 2 as the next digit of the answer. 
Result so far: 112.0
The remainder is 58 after subtracting 154 from 212.
Grab the next digit (5) from the dividend, add it to 58, then carry on: 585 / 77

Step 5:
585 divided by 77 is 7 with a remainder of 46.
The number 7 becomes the next digit in our result. 
Result so far: 1127.0
The remainder is 46 after subtracting 539 from 585.
Grab the next digit (8) from the dividend, add it to 46, then carry on: 468 / 77

Moving on to step 6:
The number 77 fits into 468 6 times, leaving a remainder of 6.
The next digit of our result is 6. 
Result so far: 11276.0
Subtracting 462 from 468 leaves us 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.

Let's proceed to step 7:
If we divide 60 by 77, we get 0 and a remainder of 60.
Record the quotient 0 as the next digit in the result. 
Result so far: 11276.0
Subtract 0 from 60 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.

Let's proceed to step 8:
77 can be fit into 600 7 times, resulting in a remainder of 61.
Write down 7 as next digit of the result. 
Result so far: 11276.07
Subtract 539 from 600 to get 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Let's proceed to step 9:
The number 77 fits into 610 7 times, leaving a remainder of 71.
Put 7 as the next digit of the answer. 
Result so far: 11276.077
If we take 539 away from 610, we end up 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.

Our division results in 11276.077 with a remaining 0.0071.