644247 divided by 80 
We want to divide 644247 by 80.

Step 1:
The number 80 fits into 6 0 times, leaving a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Include the next digit (4) from the dividend after 6, then repeat: 64 / 80

Advancing to step 2:
When dividing 64 by 80, we get 0 with a remainder of 64.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 64 leaves us with 64.
Bring next digit (4) of the dividend behind the 64 and repeat the process: 644 / 80

Let's proceed to step 3:
If we divide 644 by 80, we get 8 and a remainder of 4.
Use 8 as the next digit of our solution. 
Result so far: 8.0
Subtract 640 from 644 to get 4.
Grab the next digit (2) from the dividend, add it to 4, then carry on: 42 / 80

On to step 4:
80 can be fit into 42 0 times, resulting in a remainder of 42.
The next digit of our result is 0. 
Result so far: 80.0
Deduct 0 from 42 and we're left with 42.
Take the next digit (4) from the dividend and append it to 42, then repeat: 424 / 80

Let's proceed to step 5:
424 divided by 80 is 5 with a remainder of 24.
Put 5 as the next digit of the answer. 
Result so far: 805.0
If we take 400 away from 424, we end up with 24.
Append the next digit (7) from the dividend to 24 and continue with: 247 / 80

Let's proceed to step 6:
If we divide 247 by 80, we get 3 and a remainder of 7.
The number 3 becomes the next digit in our result. 
Result so far: 8053.0
Deduct 240 from 247 and we're left with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

On to step 7:
When dividing 70 by 80, we get 0 with a remainder of 70.
The number 0 becomes the next digit in our result. 
Result so far: 8053.0
Subtract 0 from 70 to get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Moving on to step 8:
80 can be fit into 700 8 times, resulting in a remainder of 60.
Put 8 as the next digit of the answer. 
Result so far: 8053.08
The remainder is 60 after subtracting 640 from 700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 9:
If we divide 600 by 80, we get 7 and a remainder of 40.
The number 7 becomes the next digit in our result. 
Result so far: 8053.087
Subtract 560 from 600 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 10:
If we divide 400 by 80, we get 5 and a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 8053.0875
The remainder is 0 after subtracting 400 from 400.
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 11:
80 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 8053.0875
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.

Let's proceed to step 12:
When dividing 0 by 80, we get 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 8053.0875
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.

In conclusion, the division gives 8053.0875 with a balance of 0.0.