408085 ÷ 80 
We want to divide 408085 by 80.

On to step 1:
80 can be fit into 4 0 times, resulting in a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Bring next digit (0) of the dividend behind the 4 and repeat the process: 40 / 80

Let's proceed to step 2:
When dividing 40 by 80, we get 0 with a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 40, we end up with 40.
Grab the next digit (8) from the dividend, add it to 40, then carry on: 408 / 80

Advancing to step 3:
If we divide 408 by 80, we get 5 and a remainder of 8.
The next digit of our result is 5. 
Result so far: 5.0
If we take 400 away from 408, we end up with 8.
Include the next digit (0) from the dividend after 8, then repeat: 80 / 80

Step 4:
If we divide 80 by 80, we get 1 and a remainder of 0.
The number 1 becomes the next digit in our result. 
Result so far: 51.0
The remainder is 0 after subtracting 80 from 80.
Fetch the next digit (8) from the dividend, attach it to 0 and continue: 8 / 80

Step 5:
The number 80 fits into 8 0 times, leaving a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 510.0
The remainder is 8 after subtracting 0 from 8.
Take the next digit (5) from the dividend and append it to 8, then repeat: 85 / 80

Going ahead to step 6:
85 divided by 80 is 1 with a remainder of 5.
Use 1 as the next digit of our solution. 
Result so far: 5101.0
Subtract 80 from 85 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 7:
80 can be fit into 50 0 times, resulting in a remainder of 50.
The next digit of our result is 0. 
Result so far: 5101.0
Deduct 0 from 50 and we're left 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.

On to step 8:
80 goes into 500 6 times with a remainder of 20.
Write down 6 as next digit of the result. 
Result so far: 5101.06
If we take 480 away from 500, we end up 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: 5101.062
Deduct 160 from 200 and we're left 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:
400 divided by 80 is 5 with a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 5101.0625
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 11:
80 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 5101.0625
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.

On to step 12:
The number 80 fits into 0 0 times, leaving a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 5101.0625
Deduct 0 from 0 and we're left 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 5101.0625, with a leftover of 0.0.