42718384 ÷ 77 
The aim is to understand the frequency of 77 in 42718384.

Moving on to step 1:
77 goes into 4 0 times with a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Include the next digit (2) from the dividend after 4, then repeat: 42 / 77

Going ahead to step 2:
42 divided by 77 is 0 with a remainder of 42.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 42 after subtracting 0 from 42.
Include the next digit (7) from the dividend after 42, then repeat: 427 / 77

On to step 3:
If we divide 427 by 77, we get 5 and a remainder of 42.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
Deduct 385 from 427 and we're left with 42.
Bring next digit (1) of the dividend behind the 42 and repeat the process: 421 / 77

Advancing to step 4:
If we divide 421 by 77, we get 5 and a remainder of 36.
Record the quotient 5 as the next digit in the result. 
Result so far: 55.0
If we take 385 away from 421, we end up with 36.
Bring next digit (8) of the dividend behind the 36 and repeat the process: 368 / 77

On to step 5:
The number 77 fits into 368 4 times, leaving a remainder of 60.
The number 4 becomes the next digit in our result. 
Result so far: 554.0
Subtracting 308 from 368 leaves us with 60.
Grab the next digit (3) from the dividend, add it to 60, then carry on: 603 / 77

Advancing to step 6:
77 goes into 603 7 times with a remainder of 64.
The number 7 becomes the next digit in our result. 
Result so far: 5547.0
Deduct 539 from 603 and we're left with 64.
Grab the next digit (8) from the dividend, add it to 64, then carry on: 648 / 77

On to step 7:
77 goes into 648 8 times with a remainder of 32.
The number 8 becomes the next digit in our result. 
Result so far: 55478.0
If we subtract 616 from 648, we get 32.
Bring next digit (4) of the dividend behind the 32 and repeat the process: 324 / 77

Let's proceed to step 8:
The number 77 fits into 324 4 times, leaving a remainder of 16.
Put 4 as the next digit of the answer. 
Result so far: 554784.0
If we subtract 308 from 324, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 9:
When dividing 160 by 77, we get 2 with a remainder of 6.
Record the quotient 2 as the next digit in the result. 
Result so far: 554784.2
The remainder is 6 after subtracting 154 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 10:
60 divided by 77 is 0 with a remainder of 60.
Record the quotient 0 as the next digit in the result. 
Result so far: 554784.2
Deduct 0 from 60 and we're left with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Going ahead to step 11:
When dividing 600 by 77, we get 7 with a remainder of 61.
Record the quotient 7 as the next digit in the result. 
Result so far: 554784.207
If we take 539 away from 600, we end up with 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

On to step 12:
77 can be fit into 610 7 times, resulting in a remainder of 71.
Use 7 as the next digit of our solution. 
Result so far: 554784.2077
Subtract 539 from 610 to get 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

The final outcome is 554784.2077, with a leftover of 0.00071.