77135075 ÷ 791 
The aim is to understand the frequency of 791 in 77135075.

Moving on to step 1:
791 can be fit into 7 0 times, resulting in a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Include the next digit (7) from the dividend after 7, then repeat: 77 / 791

Going ahead to step 2:
791 can be fit into 77 0 times, resulting in a remainder of 77.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 77, we end up with 77.
Grab the next digit (1) from the dividend, add it to 77, then carry on: 771 / 791

On to step 3:
If we divide 771 by 791, we get 0 and a remainder of 771.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 771 to get 771.
Fetch the next digit (3) from the dividend, attach it to 771 and continue: 7713 / 791

Advancing to step 4:
When dividing 7713 by 791, we get 9 with a remainder of 594.
Record the quotient 9 as the next digit in the result. 
Result so far: 9.0
Subtract 7119 from 7713 to get 594.
Bring next digit (5) of the dividend behind the 594 and repeat the process: 5945 / 791

Moving on to step 5:
791 can be fit into 5945 7 times, resulting in a remainder of 408.
Record the quotient 7 as the next digit in the result. 
Result so far: 97.0
Deduct 5537 from 5945 and we're left with 408.
Fetch the next digit (0) from the dividend, attach it to 408 and continue: 4080 / 791

Step 6:
When dividing 4080 by 791, we get 5 with a remainder of 125.
Put 5 as the next digit of the answer. 
Result so far: 975.0
If we subtract 3955 from 4080, we get 125.
Bring next digit (7) of the dividend behind the 125 and repeat the process: 1257 / 791

On to step 7:
The number 791 fits into 1257 1 times, leaving a remainder of 466.
Write down 1 as next digit of the result. 
Result so far: 9751.0
The remainder is 466 after subtracting 791 from 1257.
Bring next digit (5) of the dividend behind the 466 and repeat the process: 4665 / 791

Moving on to step 8:
791 goes into 4665 5 times with a remainder of 710.
Use 5 as the next digit of our solution. 
Result so far: 97515.0
Subtract 3955 from 4665 to get 710.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7100, and continue the process.

Step 9:
When dividing 7100 by 791, we get 8 with a remainder of 772.
Put 8 as the next digit of the answer. 
Result so far: 97515.8
If we subtract 6328 from 7100, we get 772.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7720, and continue the process.

Step 10:
When dividing 7720 by 791, we get 9 with a remainder of 601.
The number 9 becomes the next digit in our result. 
Result so far: 97515.89
Subtracting 7119 from 7720 leaves us with 601.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6010, and continue the process.

Advancing to step 11:
If we divide 6010 by 791, we get 7 and a remainder of 473.
Record the quotient 7 as the next digit in the result. 
Result so far: 97515.897
If we take 5537 away from 6010, we end up with 473.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4730, and continue the process.

On to step 12:
4730 divided by 791 is 5 with a remainder of 775.
Use 5 as the next digit of our solution. 
Result so far: 97515.8975
Deduct 3955 from 4730 and we're left with 775.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7750, and continue the process.

On to step 13:
The number 791 fits into 7750 9 times, leaving a remainder of 631.
The next digit of our result is 9. 
Result so far: 97515.89759
If we subtract 7119 from 7750, we get 631.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6310, and continue the process.

Let's proceed to step 14:
If we divide 6310 by 791, we get 7 and a remainder of 773.
The number 7 becomes the next digit in our result. 
Result so far: 97515.897597
Subtract 5537 from 6310 to get 773.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7730, and continue the process.

Let's proceed to step 15:
791 goes into 7730 9 times with a remainder of 611.
Put 9 as the next digit of the answer. 
Result so far: 97515.8975979
Deduct 7119 from 7730 and we're left with 611.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6110, and continue the process.

Advancing to step 16:
791 goes into 6110 7 times with a remainder of 573.
Record the quotient 7 as the next digit in the result. 
Result so far: 97515.89759797
Subtracting 5537 from 6110 leaves us with 573.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5730, and continue the process.

The quotient of the division is 97515.89759797, and the remainder is 5.73e-07.