We look at the division of 644902 by 80 
Let's see how many times 80 fits into 644902.

Moving on to step 1:
When dividing 6 by 80, we get 0 with a remainder of 6.
Write down 0 as next digit of the result. 
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

Going ahead to step 2:
If we divide 64 by 80, we get 0 and a remainder of 64.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 64 after subtracting 0 from 64.
Grab the next digit (4) from the dividend, add it to 64, then carry on: 644 / 80

Going ahead to step 3:
When dividing 644 by 80, we get 8 with a remainder of 4.
The next digit of our result is 8. 
Result so far: 8.0
The remainder is 4 after subtracting 640 from 644.
Fetch the next digit (9) from the dividend, attach it to 4 and continue: 49 / 80

Advancing to step 4:
The number 80 fits into 49 0 times, leaving a remainder of 49.
Put 0 as the next digit of the answer. 
Result so far: 80.0
The remainder is 49 after subtracting 0 from 49.
Fetch the next digit (0) from the dividend, attach it to 49 and continue: 490 / 80

Going ahead to step 5:
80 goes into 490 6 times with a remainder of 10.
Write down 6 as next digit of the result. 
Result so far: 806.0
Subtracting 480 from 490 leaves us with 10.
Grab the next digit (2) from the dividend, add it to 10, then carry on: 102 / 80

Step 6:
When dividing 102 by 80, we get 1 with a remainder of 22.
The number 1 becomes the next digit in our result. 
Result so far: 8061.0
Subtracting 80 from 102 leaves us with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Step 7:
When dividing 220 by 80, we get 2 with a remainder of 60.
The next digit of our result is 2. 
Result so far: 8061.2
Subtracting 160 from 220 leaves us with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Let's proceed to step 8:
600 divided by 80 is 7 with a remainder of 40.
Record the quotient 7 as the next digit in the result. 
Result so far: 8061.27
If we take 560 away from 600, 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.

Going ahead to step 9:
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: 8061.275
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.

Let's proceed to step 10:
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: 8061.275
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.

Going ahead to step 11:
0 divided by 80 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 8061.275
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.

The final outcome is 8061.275, with a leftover of 0.0.