We divide 869065 by 77
The aim is to understand the frequency of 77 in 869065.

Moving on to step 1:
77 can be fit into 8 0 times, resulting in a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Fetch the next digit (6) from the dividend, attach it to 8 and continue: 86 / 77

Advancing to step 2:
86 divided by 77 is 1 with a remainder of 9.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 77 from 86, we get 9.
Include the next digit (9) from the dividend after 9, then repeat: 99 / 77

Let's proceed to step 3:
99 divided by 77 is 1 with a remainder of 22.
The number 1 becomes the next digit in our result. 
Result so far: 11.0
Subtract 77 from 99 to get 22.
Take the next digit (0) from the dividend and append it to 22, then repeat: 220 / 77

Step 4:
If we divide 220 by 77, we get 2 and a remainder of 66.
The number 2 becomes the next digit in our result. 
Result so far: 112.0
Subtract 154 from 220 to get 66.
Bring next digit (6) of the dividend behind the 66 and repeat the process: 666 / 77

Moving on to step 5:
When dividing 666 by 77, we get 8 with a remainder of 50.
Use 8 as the next digit of our solution. 
Result so far: 1128.0
If we subtract 616 from 666, we get 50.
Take the next digit (5) from the dividend and append it to 50, then repeat: 505 / 77

Going ahead to step 6:
77 goes into 505 6 times with a remainder of 43.
Put 6 as the next digit of the answer. 
Result so far: 11286.0
If we take 462 away from 505, we end up with 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Step 7:
If we divide 430 by 77, we get 5 and a remainder of 45.
The number 5 becomes the next digit in our result. 
Result so far: 11286.5
Deduct 385 from 430 and we're left with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

On to step 8:
77 goes into 450 5 times with a remainder of 65.
The next digit of our result is 5. 
Result so far: 11286.55
Deduct 385 from 450 and we're left with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

After the division, we end up with 11286.55 and a remainder of 0.065.