We look at the division of 645228 by 80 
We want to figure out the number of times 645228 can be divided by 80.

Step 1:
80 can be fit into 6 0 times, resulting in a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Append the next digit (4) from the dividend to 6 and continue with: 64 / 80

Moving on to step 2:
When dividing 64 by 80, we get 0 with a remainder of 64.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 64, we get 64.
Fetch the next digit (5) from the dividend, attach it to 64 and continue: 645 / 80

Advancing to step 3:
80 can be fit into 645 8 times, resulting in a remainder of 5.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
If we take 640 away from 645, we end up with 5.
Append the next digit (2) from the dividend to 5 and continue with: 52 / 80

On to step 4:
80 goes into 52 0 times with a remainder of 52.
The number 0 becomes the next digit in our result. 
Result so far: 80.0
Subtract 0 from 52 to get 52.
Fetch the next digit (2) from the dividend, attach it to 52 and continue: 522 / 80

Moving on to step 5:
The number 80 fits into 522 6 times, leaving a remainder of 42.
The number 6 becomes the next digit in our result. 
Result so far: 806.0
If we take 480 away from 522, we end up with 42.
Take the next digit (8) from the dividend and append it to 42, then repeat: 428 / 80

Let's proceed to step 6:
428 divided by 80 is 5 with a remainder of 28.
Record the quotient 5 as the next digit in the result. 
Result so far: 8065.0
If we take 400 away from 428, we end up with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Going ahead to step 7:
80 goes into 280 3 times with a remainder of 40.
The number 3 becomes the next digit in our result. 
Result so far: 8065.3
If we subtract 240 from 280, we 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.

On to step 8:
80 goes into 400 5 times with a remainder of 0.
The next digit of our result is 5. 
Result so far: 8065.35
If we take 400 away from 400, 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.

On to step 9:
80 goes into 0 0 times with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 8065.35
Subtracting 0 from 0 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.

Step 10:
If we divide 0 by 80, we get 0 and a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 8065.35
Subtracting 0 from 0 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.

In conclusion, the division gives 8065.35 with a balance of 0.0.