218559 ÷ 77 
The aim is to understand the frequency of 77 in 218559.

On to step 1:
77 goes into 2 0 times with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 77

Let's proceed to step 2:
When dividing 21 by 77, we get 0 with a remainder of 21.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 21 and we're left with 21.
Fetch the next digit (8) from the dividend, attach it to 21 and continue: 218 / 77

Step 3:
77 goes into 218 2 times with a remainder of 64.
Use 2 as the next digit of our solution. 
Result so far: 2.0
If we take 154 away from 218, we end up with 64.
Include the next digit (5) from the dividend after 64, then repeat: 645 / 77

Going ahead to step 4:
77 can be fit into 645 8 times, resulting in a remainder of 29.
The number 8 becomes the next digit in our result. 
Result so far: 28.0
If we subtract 616 from 645, we get 29.
Append the next digit (5) from the dividend to 29 and continue with: 295 / 77

Step 5:
77 can be fit into 295 3 times, resulting in a remainder of 64.
The number 3 becomes the next digit in our result. 
Result so far: 283.0
Subtract 231 from 295 to get 64.
Bring next digit (9) of the dividend behind the 64 and repeat the process: 649 / 77

Step 6:
77 can be fit into 649 8 times, resulting in a remainder of 33.
Write down 8 as next digit of the result. 
Result so far: 2838.0
The remainder is 33 after subtracting 616 from 649.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Advancing to step 7:
When dividing 330 by 77, we get 4 with a remainder of 22.
Record the quotient 4 as the next digit in the result. 
Result so far: 2838.4
If we take 308 away from 330, we end up with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Going ahead to step 8:
220 divided by 77 is 2 with a remainder of 66.
Record the quotient 2 as the next digit in the result. 
Result so far: 2838.42
If we subtract 154 from 220, we get 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Advancing to step 9:
The number 77 fits into 660 8 times, leaving a remainder of 44.
The next digit of our result is 8. 
Result so far: 2838.428
The remainder is 44 after subtracting 616 from 660.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

On to step 10:
The number 77 fits into 440 5 times, leaving a remainder of 55.
The number 5 becomes the next digit in our result. 
Result so far: 2838.4285
The remainder is 55 after subtracting 385 from 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

On to step 11:
550 divided by 77 is 7 with a remainder of 11.
The number 7 becomes the next digit in our result. 
Result so far: 2838.42857
If we subtract 539 from 550, we get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Going ahead to step 12:
77 goes into 110 1 times with a remainder of 33.
Write down 1 as next digit of the result. 
Result so far: 2838.428571
Subtracting 77 from 110 leaves us with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Advancing to step 13:
If we divide 330 by 77, we get 4 and a remainder of 22.
Use 4 as the next digit of our solution. 
Result so far: 2838.4285714
If we take 308 away from 330, we end up with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Going ahead to step 14:
The number 77 fits into 220 2 times, leaving a remainder of 66.
Write down 2 as next digit of the result. 
Result so far: 2838.42857142
The remainder is 66 after subtracting 154 from 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

The final result is 2838.42857142 with a remainder of 6.6e-08.