75758 divided by 77 
The aim is to understand the frequency of 77 in 75758.

Let's proceed to step 1:
When dividing 7 by 77, we get 0 with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Bring next digit (5) of the dividend behind the 7 and repeat the process: 75 / 77

Step 2:
77 can be fit into 75 0 times, resulting in a remainder of 75.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 75 and we're left with 75.
Append the next digit (7) from the dividend to 75 and continue with: 757 / 77

On to step 3:
When dividing 757 by 77, we get 9 with a remainder of 64.
Put 9 as the next digit of the answer. 
Result so far: 9.0
Deduct 693 from 757 and we're left with 64.
Take the next digit (5) from the dividend and append it to 64, then repeat: 645 / 77

Step 4:
When dividing 645 by 77, we get 8 with a remainder of 29.
Record the quotient 8 as the next digit in the result. 
Result so far: 98.0
If we take 616 away from 645, we end up with 29.
Include the next digit (8) from the dividend after 29, then repeat: 298 / 77

Moving on to step 5:
The number 77 fits into 298 3 times, leaving a remainder of 67.
Use 3 as the next digit of our solution. 
Result so far: 983.0
If we subtract 231 from 298, we get 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Going ahead to step 6:
670 divided by 77 is 8 with a remainder of 54.
Write down 8 as next digit of the result. 
Result so far: 983.8
If we take 616 away from 670, we end up with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Let's proceed to step 7:
The number 77 fits into 540 7 times, leaving a remainder of 1.
Put 7 as the next digit of the answer. 
Result so far: 983.87
The remainder is 1 after subtracting 539 from 540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Moving on to step 8:
10 divided by 77 is 0 with a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 983.87
Deduct 0 from 10 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 9:
77 can be fit into 100 1 times, resulting in a remainder of 23.
Record the quotient 1 as the next digit in the result. 
Result so far: 983.8701
If we take 77 away from 100, we end up with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Moving on to step 10:
If we divide 230 by 77, we get 2 and a remainder of 76.
The next digit of our result is 2. 
Result so far: 983.87012
If we take 154 away from 230, we end up with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Going ahead to step 11:
760 divided by 77 is 9 with a remainder of 67.
The next digit of our result is 9. 
Result so far: 983.870129
If we subtract 693 from 760, we get 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Moving on to step 12:
When dividing 670 by 77, we get 8 with a remainder of 54.
Write down 8 as next digit of the result. 
Result so far: 983.8701298
Deduct 616 from 670 and we're left with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Step 13:
If we divide 540 by 77, we get 7 and a remainder of 1.
Record the quotient 7 as the next digit in the result. 
Result so far: 983.87012987
Subtracting 539 from 540 leaves us with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

The quotient of the division is 983.87012987, and the remainder is 1e-09.