665233 divided by 77 
The aim is to understand the frequency of 77 in 665233.

Going ahead to step 1:
77 goes into 6 0 times with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Bring next digit (6) of the dividend behind the 6 and repeat the process: 66 / 77

Advancing to step 2:
If we divide 66 by 77, we get 0 and a remainder of 66.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 66 leaves us with 66.
Include the next digit (5) from the dividend after 66, then repeat: 665 / 77

Let's proceed to step 3:
77 can be fit into 665 8 times, resulting in a remainder of 49.
Write down 8 as next digit of the result. 
Result so far: 8.0
Subtract 616 from 665 to get 49.
Fetch the next digit (2) from the dividend, attach it to 49 and continue: 492 / 77

On to step 4:
77 can be fit into 492 6 times, resulting in a remainder of 30.
Write down 6 as next digit of the result. 
Result so far: 86.0
Deduct 462 from 492 and we're left with 30.
Fetch the next digit (3) from the dividend, attach it to 30 and continue: 303 / 77

Advancing to step 5:
303 divided by 77 is 3 with a remainder of 72.
Put 3 as the next digit of the answer. 
Result so far: 863.0
The remainder is 72 after subtracting 231 from 303.
Fetch the next digit (3) from the dividend, attach it to 72 and continue: 723 / 77

On to step 6:
77 goes into 723 9 times with a remainder of 30.
Put 9 as the next digit of the answer. 
Result so far: 8639.0
Subtracting 693 from 723 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Moving on to step 7:
If we divide 300 by 77, we get 3 and a remainder of 69.
The number 3 becomes the next digit in our result. 
Result so far: 8639.3
If we take 231 away from 300, we end up with 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Going ahead to step 8:
The number 77 fits into 690 8 times, leaving a remainder of 74.
Record the quotient 8 as the next digit in the result. 
Result so far: 8639.38
If we take 616 away from 690, we end up with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Going ahead to step 9:
77 goes into 740 9 times with a remainder of 47.
Write down 9 as next digit of the result. 
Result so far: 8639.389
If we subtract 693 from 740, we get 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Step 10:
If we divide 470 by 77, we get 6 and a remainder of 8.
Record the quotient 6 as the next digit in the result. 
Result so far: 8639.3896
The remainder is 8 after subtracting 462 from 470.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 11:
77 can be fit into 80 1 times, resulting in a remainder of 3.
The next digit of our result is 1. 
Result so far: 8639.38961
Subtracting 77 from 80 leaves us with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 12:
30 divided by 77 is 0 with a remainder of 30.
Write down 0 as next digit of the result. 
Result so far: 8639.38961
Deduct 0 from 30 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 13:
When dividing 300 by 77, we get 3 with a remainder of 69.
The number 3 becomes the next digit in our result. 
Result so far: 8639.3896103
The remainder is 69 after subtracting 231 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Going ahead to step 14:
77 can be fit into 690 8 times, resulting in a remainder of 74.
Use 8 as the next digit of our solution. 
Result so far: 8639.38961038
The remainder is 74 after subtracting 616 from 690.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Our division results in 8639.38961038 with a remaining 7.4e-08.