55668065 divided by 80 
The aim is to understand the frequency of 80 in 55668065.

Advancing to step 1:
When dividing 5 by 80, we get 0 with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Take the next digit (5) from the dividend and append it to 5, then repeat: 55 / 80

Going ahead to step 2:
80 can be fit into 55 0 times, resulting in a remainder of 55.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 55 after subtracting 0 from 55.
Include the next digit (6) from the dividend after 55, then repeat: 556 / 80

Step 3:
If we divide 556 by 80, we get 6 and a remainder of 76.
Record the quotient 6 as the next digit in the result. 
Result so far: 6.0
If we take 480 away from 556, we end up with 76.
Bring next digit (6) of the dividend behind the 76 and repeat the process: 766 / 80

Step 4:
80 can be fit into 766 9 times, resulting in a remainder of 46.
The number 9 becomes the next digit in our result. 
Result so far: 69.0
The remainder is 46 after subtracting 720 from 766.
Append the next digit (8) from the dividend to 46 and continue with: 468 / 80

Going ahead to step 5:
The number 80 fits into 468 5 times, leaving a remainder of 68.
Use 5 as the next digit of our solution. 
Result so far: 695.0
Deduct 400 from 468 and we're left with 68.
Bring next digit (0) of the dividend behind the 68 and repeat the process: 680 / 80

Let's proceed to step 6:
If we divide 680 by 80, we get 8 and a remainder of 40.
Write down 8 as next digit of the result. 
Result so far: 6958.0
If we subtract 640 from 680, we get 40.
Grab the next digit (6) from the dividend, add it to 40, then carry on: 406 / 80

Step 7:
80 can be fit into 406 5 times, resulting in a remainder of 6.
Use 5 as the next digit of our solution. 
Result so far: 69585.0
The remainder is 6 after subtracting 400 from 406.
Include the next digit (5) from the dividend after 6, then repeat: 65 / 80

On to step 8:
80 goes into 65 0 times with a remainder of 65.
The next digit of our result is 0. 
Result so far: 695850.0
The remainder is 65 after subtracting 0 from 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Going ahead to step 9:
The number 80 fits into 650 8 times, leaving a remainder of 10.
Use 8 as the next digit of our solution. 
Result so far: 695850.8
Deduct 640 from 650 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 10:
When dividing 100 by 80, we get 1 with a remainder of 20.
Put 1 as the next digit of the answer. 
Result so far: 695850.81
The remainder is 20 after subtracting 80 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 11:
The number 80 fits into 200 2 times, leaving a remainder of 40.
Write down 2 as next digit of the result. 
Result so far: 695850.812
If we take 160 away from 200, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 12:
When dividing 400 by 80, we get 5 with a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 695850.8125
Deduct 400 from 400 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 13:
If we divide 0 by 80, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 695850.8125
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 14:
80 can be fit into 0 0 times, resulting in a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 695850.8125
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 695850.8125 and a remainder of 0.0.