We're dividing 505750 by 77 
The aim is to understand the frequency of 77 in 505750.

Moving on to step 1:
5 divided by 77 is 0 with a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Take the next digit (0) from the dividend and append it to 5, then repeat: 50 / 77

Advancing to step 2:
If we divide 50 by 77, we get 0 and a remainder of 50.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 50 to get 50.
Bring next digit (5) of the dividend behind the 50 and repeat the process: 505 / 77

Moving on to step 3:
When dividing 505 by 77, we get 6 with a remainder of 43.
Record the quotient 6 as the next digit in the result. 
Result so far: 6.0
If we subtract 462 from 505, we get 43.
Bring next digit (7) of the dividend behind the 43 and repeat the process: 437 / 77

Advancing to step 4:
When dividing 437 by 77, we get 5 with a remainder of 52.
The next digit of our result is 5. 
Result so far: 65.0
Deduct 385 from 437 and we're left with 52.
Include the next digit (5) from the dividend after 52, then repeat: 525 / 77

Going ahead to step 5:
77 goes into 525 6 times with a remainder of 63.
The next digit of our result is 6. 
Result so far: 656.0
If we subtract 462 from 525, we get 63.
Bring next digit (0) of the dividend behind the 63 and repeat the process: 630 / 77

Going ahead to step 6:
630 divided by 77 is 8 with a remainder of 14.
The number 8 becomes the next digit in our result. 
Result so far: 6568.0
Subtracting 616 from 630 leaves us with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Going ahead to step 7:
The number 77 fits into 140 1 times, leaving a remainder of 63.
Record the quotient 1 as the next digit in the result. 
Result so far: 6568.1
If we subtract 77 from 140, we get 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Step 8:
When dividing 630 by 77, we get 8 with a remainder of 14.
Record the quotient 8 as the next digit in the result. 
Result so far: 6568.18
The remainder is 14 after subtracting 616 from 630.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 9:
77 can be fit into 140 1 times, resulting in a remainder of 63.
Put 1 as the next digit of the answer. 
Result so far: 6568.181
If we subtract 77 from 140, we get 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

On to step 10:
630 divided by 77 is 8 with a remainder of 14.
Use 8 as the next digit of our solution. 
Result so far: 6568.1818
If we take 616 away from 630, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Step 11:
If we divide 140 by 77, we get 1 and a remainder of 63.
Record the quotient 1 as the next digit in the result. 
Result so far: 6568.18181
If we subtract 77 from 140, we get 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Step 12:
77 goes into 630 8 times with a remainder of 14.
The number 8 becomes the next digit in our result. 
Result so far: 6568.181818
If we take 616 away from 630, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Let's proceed to step 13:
When dividing 140 by 77, we get 1 with a remainder of 63.
Record the quotient 1 as the next digit in the result. 
Result so far: 6568.1818181
Subtract 77 from 140 to get 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Advancing to step 14:
77 can be fit into 630 8 times, resulting in a remainder of 14.
Record the quotient 8 as the next digit in the result. 
Result so far: 6568.18181818
The remainder is 14 after subtracting 616 from 630.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Our division results in 6568.18181818 with a remaining 1.4e-08.