642013 divided by 80 
We want to figure out the number of times 642013 can be divided by 80.

Moving on to step 1:
The number 80 fits into 6 0 times, leaving a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Grab the next digit (4) from the dividend, add it to 6, then carry on: 64 / 80

Going ahead to step 2:
The number 80 fits into 64 0 times, leaving a remainder of 64.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 64, we end up with 64.
Include the next digit (2) from the dividend after 64, then repeat: 642 / 80

Step 3:
80 can be fit into 642 8 times, resulting in a remainder of 2.
Put 8 as the next digit of the answer. 
Result so far: 8.0
Subtract 640 from 642 to get 2.
Fetch the next digit (0) from the dividend, attach it to 2 and continue: 20 / 80

Step 4:
80 goes into 20 0 times with a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 80.0
Subtract 0 from 20 to get 20.
Append the next digit (1) from the dividend to 20 and continue with: 201 / 80

Step 5:
When dividing 201 by 80, we get 2 with a remainder of 41.
Write down 2 as next digit of the result. 
Result so far: 802.0
If we take 160 away from 201, we end up with 41.
Fetch the next digit (3) from the dividend, attach it to 41 and continue: 413 / 80

On to step 6:
413 divided by 80 is 5 with a remainder of 13.
Record the quotient 5 as the next digit in the result. 
Result so far: 8025.0
Subtract 400 from 413 to get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Moving on to step 7:
80 can be fit into 130 1 times, resulting in a remainder of 50.
Put 1 as the next digit of the answer. 
Result so far: 8025.1
If we take 80 away from 130, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Advancing to step 8:
80 goes into 500 6 times with a remainder of 20.
Record the quotient 6 as the next digit in the result. 
Result so far: 8025.16
Deduct 480 from 500 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 9:
The number 80 fits into 200 2 times, leaving a remainder of 40.
Record the quotient 2 as the next digit in the result. 
Result so far: 8025.162
Subtracting 160 from 200 leaves us 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.

Let's proceed to step 10:
80 goes into 400 5 times with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 8025.1625
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:
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: 8025.1625
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.

Advancing to step 12:
80 can be fit into 0 0 times, resulting in a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 8025.1625
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.

Our division results in 8025.1625 with a remaining 0.0.