We're dividing 80479079 by 77 
The aim is to understand the frequency of 77 in 80479079.

Step 1:
When dividing 8 by 77, we get 0 with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Fetch the next digit (0) from the dividend, attach it to 8 and continue: 80 / 77

Step 2:
When dividing 80 by 77, we get 1 with a remainder of 3.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 77 from 80, we get 3.
Bring next digit (4) of the dividend behind the 3 and repeat the process: 34 / 77

Step 3:
When dividing 34 by 77, we get 0 with a remainder of 34.
Use 0 as the next digit of our solution. 
Result so far: 10.0
If we take 0 away from 34, we end up with 34.
Append the next digit (7) from the dividend to 34 and continue with: 347 / 77

Moving on to step 4:
When dividing 347 by 77, we get 4 with a remainder of 39.
The number 4 becomes the next digit in our result. 
Result so far: 104.0
If we take 308 away from 347, we end up with 39.
Grab the next digit (9) from the dividend, add it to 39, then carry on: 399 / 77

On to step 5:
77 can be fit into 399 5 times, resulting in a remainder of 14.
Use 5 as the next digit of our solution. 
Result so far: 1045.0
If we take 385 away from 399, we end up with 14.
Bring next digit (0) of the dividend behind the 14 and repeat the process: 140 / 77

Let's proceed to step 6:
140 divided by 77 is 1 with a remainder of 63.
The number 1 becomes the next digit in our result. 
Result so far: 10451.0
If we subtract 77 from 140, we get 63.
Include the next digit (7) from the dividend after 63, then repeat: 637 / 77

Let's proceed to step 7:
77 goes into 637 8 times with a remainder of 21.
Use 8 as the next digit of our solution. 
Result so far: 104518.0
If we take 616 away from 637, we end up with 21.
Include the next digit (9) from the dividend after 21, then repeat: 219 / 77

Advancing to step 8:
When dividing 219 by 77, we get 2 with a remainder of 65.
Use 2 as the next digit of our solution. 
Result so far: 1045182.0
Subtract 154 from 219 to get 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Moving on to step 9:
77 can be fit into 650 8 times, resulting in a remainder of 34.
Write down 8 as next digit of the result. 
Result so far: 1045182.8
If we subtract 616 from 650, we get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

On to step 10:
If we divide 340 by 77, we get 4 and a remainder of 32.
Record the quotient 4 as the next digit in the result. 
Result so far: 1045182.84
Subtract 308 from 340 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

On to step 11:
When dividing 320 by 77, we get 4 with a remainder of 12.
Use 4 as the next digit of our solution. 
Result so far: 1045182.844
The remainder is 12 after subtracting 308 from 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

After the division, we end up with 1045182.844 and a remainder of 0.0012.