We divide 405557 by 80
We want to figure out the number of times 405557 can be divided by 80.

Let's proceed to step 1:
80 goes into 4 0 times with a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Grab the next digit (0) from the dividend, add it to 4, then carry on: 40 / 80

Let's proceed to step 2:
80 goes into 40 0 times with a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 40 after subtracting 0 from 40.
Grab the next digit (5) from the dividend, add it to 40, then carry on: 405 / 80

Let's proceed to step 3:
If we divide 405 by 80, we get 5 and a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
If we subtract 400 from 405, we get 5.
Include the next digit (5) from the dividend after 5, then repeat: 55 / 80

Let's proceed to step 4:
When dividing 55 by 80, we get 0 with a remainder of 55.
The number 0 becomes the next digit in our result. 
Result so far: 50.0
If we subtract 0 from 55, we get 55.
Grab the next digit (5) from the dividend, add it to 55, then carry on: 555 / 80

Let's proceed to step 5:
If we divide 555 by 80, we get 6 and a remainder of 75.
The number 6 becomes the next digit in our result. 
Result so far: 506.0
If we take 480 away from 555, we end up with 75.
Include the next digit (7) from the dividend after 75, then repeat: 757 / 80

Let's proceed to step 6:
The number 80 fits into 757 9 times, leaving a remainder of 37.
The next digit of our result is 9. 
Result so far: 5069.0
If we take 720 away from 757, we end up with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Moving on to step 7:
370 divided by 80 is 4 with a remainder of 50.
The number 4 becomes the next digit in our result. 
Result so far: 5069.4
If we take 320 away from 370, 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.

Moving on to step 8:
500 divided by 80 is 6 with a remainder of 20.
The number 6 becomes the next digit in our result. 
Result so far: 5069.46
Subtract 480 from 500 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 9:
80 can be fit into 200 2 times, resulting in a remainder of 40.
The next digit of our result is 2. 
Result so far: 5069.462
The remainder is 40 after subtracting 160 from 200.
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:
When dividing 400 by 80, we get 5 with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 5069.4625
If we subtract 400 from 400, 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.

On to step 11:
80 goes into 0 0 times with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 5069.4625
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.

Going ahead to step 12:
80 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 5069.4625
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.

Our division results in 5069.4625 with a remaining 0.0.