500378 ÷ 80 
The aim is to understand the frequency of 80 in 500378.

Step 1:
If we divide 5 by 80, we get 0 and a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Include the next digit (0) from the dividend after 5, then repeat: 50 / 80

On to step 2:
80 can be fit into 50 0 times, resulting in a remainder of 50.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 50 and we're left with 50.
Fetch the next digit (0) from the dividend, attach it to 50 and continue: 500 / 80

On to step 3:
If we divide 500 by 80, we get 6 and a remainder of 20.
Put 6 as the next digit of the answer. 
Result so far: 6.0
If we take 480 away from 500, we end up with 20.
Grab the next digit (3) from the dividend, add it to 20, then carry on: 203 / 80

Going ahead to step 4:
If we divide 203 by 80, we get 2 and a remainder of 43.
Write down 2 as next digit of the result. 
Result so far: 62.0
If we subtract 160 from 203, we get 43.
Append the next digit (7) from the dividend to 43 and continue with: 437 / 80

Step 5:
The number 80 fits into 437 5 times, leaving a remainder of 37.
The number 5 becomes the next digit in our result. 
Result so far: 625.0
Deduct 400 from 437 and we're left with 37.
Append the next digit (8) from the dividend to 37 and continue with: 378 / 80

Moving on to step 6:
80 goes into 378 4 times with a remainder of 58.
Put 4 as the next digit of the answer. 
Result so far: 6254.0
The remainder is 58 after subtracting 320 from 378.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

On to step 7:
80 goes into 580 7 times with a remainder of 20.
Record the quotient 7 as the next digit in the result. 
Result so far: 6254.7
The remainder is 20 after subtracting 560 from 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 8:
When dividing 200 by 80, we get 2 with a remainder of 40.
Record the quotient 2 as the next digit in the result. 
Result so far: 6254.72
Subtract 160 from 200 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 9:
400 divided by 80 is 5 with a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 6254.725
Subtracting 400 from 400 leaves us 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.

Advancing to step 10:
The number 80 fits into 0 0 times, leaving a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 6254.725
Subtract 0 from 0 to get 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 11:
0 divided by 80 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 6254.725
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 6254.725 with a remaining 0.0.