We look at the division of 619964 by 80 
We want to divide 619964 by 80.

On to step 1:
If we divide 6 by 80, we get 0 and a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Fetch the next digit (1) from the dividend, attach it to 6 and continue: 61 / 80

Step 2:
80 goes into 61 0 times with a remainder of 61.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 61, we get 61.
Append the next digit (9) from the dividend to 61 and continue with: 619 / 80

Step 3:
If we divide 619 by 80, we get 7 and a remainder of 59.
Write down 7 as next digit of the result. 
Result so far: 7.0
Subtract 560 from 619 to get 59.
Append the next digit (9) from the dividend to 59 and continue with: 599 / 80

Let's proceed to step 4:
The number 80 fits into 599 7 times, leaving a remainder of 39.
The number 7 becomes the next digit in our result. 
Result so far: 77.0
The remainder is 39 after subtracting 560 from 599.
Include the next digit (6) from the dividend after 39, then repeat: 396 / 80

On to step 5:
80 goes into 396 4 times with a remainder of 76.
Write down 4 as next digit of the result. 
Result so far: 774.0
Subtract 320 from 396 to get 76.
Append the next digit (4) from the dividend to 76 and continue with: 764 / 80

Moving on to step 6:
If we divide 764 by 80, we get 9 and a remainder of 44.
Put 9 as the next digit of the answer. 
Result so far: 7749.0
The remainder is 44 after subtracting 720 from 764.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

On to step 7:
440 divided by 80 is 5 with a remainder of 40.
Write down 5 as next digit of the result. 
Result so far: 7749.5
If we subtract 400 from 440, 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.

Let's proceed to step 8:
If we divide 400 by 80, we get 5 and a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 7749.55
Subtract 400 from 400 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.

The final result is 7749.55 with a remainder of 0.0.