818489 divided by 77 
The aim is to understand the frequency of 77 in 818489.

On to step 1:
8 divided by 77 is 0 with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Include the next digit (1) from the dividend after 8, then repeat: 81 / 77

Let's proceed to step 2:
If we divide 81 by 77, we get 1 and a remainder of 4.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 77 from 81 to get 4.
Bring next digit (8) of the dividend behind the 4 and repeat the process: 48 / 77

Advancing to step 3:
48 divided by 77 is 0 with a remainder of 48.
Use 0 as the next digit of our solution. 
Result so far: 10.0
Deduct 0 from 48 and we're left with 48.
Grab the next digit (4) from the dividend, add it to 48, then carry on: 484 / 77

Let's proceed to step 4:
77 goes into 484 6 times with a remainder of 22.
Write down 6 as next digit of the result. 
Result so far: 106.0
Subtract 462 from 484 to get 22.
Take the next digit (8) from the dividend and append it to 22, then repeat: 228 / 77

On to step 5:
The number 77 fits into 228 2 times, leaving a remainder of 74.
Use 2 as the next digit of our solution. 
Result so far: 1062.0
Subtracting 154 from 228 leaves us with 74.
Take the next digit (9) from the dividend and append it to 74, then repeat: 749 / 77

Step 6:
749 divided by 77 is 9 with a remainder of 56.
Use 9 as the next digit of our solution. 
Result so far: 10629.0
If we take 693 away from 749, we end up with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Advancing to step 7:
When dividing 560 by 77, we get 7 with a remainder of 21.
Write down 7 as next digit of the result. 
Result so far: 10629.7
If we subtract 539 from 560, we get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Moving on to step 8:
The number 77 fits into 210 2 times, leaving a remainder of 56.
The next digit of our result is 2. 
Result so far: 10629.72
Deduct 154 from 210 and we're left with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Let's proceed to step 9:
The number 77 fits into 560 7 times, leaving a remainder of 21.
Put 7 as the next digit of the answer. 
Result so far: 10629.727
If we take 539 away from 560, we end up with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

On to step 10:
210 divided by 77 is 2 with a remainder of 56.
The next digit of our result is 2. 
Result so far: 10629.7272
If we take 154 away from 210, we end up with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Step 11:
560 divided by 77 is 7 with a remainder of 21.
The number 7 becomes the next digit in our result. 
Result so far: 10629.72727
Deduct 539 from 560 and we're left with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Going ahead to step 12:
77 can be fit into 210 2 times, resulting in a remainder of 56.
The next digit of our result is 2. 
Result so far: 10629.727272
The remainder is 56 after subtracting 154 from 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Moving on to step 13:
If we divide 560 by 77, we get 7 and a remainder of 21.
Record the quotient 7 as the next digit in the result. 
Result so far: 10629.7272727
The remainder is 21 after subtracting 539 from 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Let's proceed to step 14:
77 can be fit into 210 2 times, resulting in a remainder of 56.
Record the quotient 2 as the next digit in the result. 
Result so far: 10629.72727272
Subtract 154 from 210 to get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Our division results in 10629.72727272 with a remaining 5.6e-08.