419634 ÷ 80 
Let's see how many times 80 fits into 419634.

Advancing to step 1:
4 divided by 80 is 0 with a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Take the next digit (1) from the dividend and append it to 4, then repeat: 41 / 80

Going ahead to step 2:
80 goes into 41 0 times with a remainder of 41.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 41, we end up with 41.
Append the next digit (9) from the dividend to 41 and continue with: 419 / 80

Let's proceed to step 3:
The number 80 fits into 419 5 times, leaving a remainder of 19.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
If we subtract 400 from 419, we get 19.
Include the next digit (6) from the dividend after 19, then repeat: 196 / 80

Let's proceed to step 4:
80 can be fit into 196 2 times, resulting in a remainder of 36.
Use 2 as the next digit of our solution. 
Result so far: 52.0
The remainder is 36 after subtracting 160 from 196.
Bring next digit (3) of the dividend behind the 36 and repeat the process: 363 / 80

On to step 5:
80 can be fit into 363 4 times, resulting in a remainder of 43.
Record the quotient 4 as the next digit in the result. 
Result so far: 524.0
Subtracting 320 from 363 leaves us with 43.
Take the next digit (4) from the dividend and append it to 43, then repeat: 434 / 80

Moving on to step 6:
The number 80 fits into 434 5 times, leaving a remainder of 34.
Write down 5 as next digit of the result. 
Result so far: 5245.0
Subtracting 400 from 434 leaves us with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

On to step 7:
80 can be fit into 340 4 times, resulting in a remainder of 20.
The number 4 becomes the next digit in our result. 
Result so far: 5245.4
The remainder is 20 after subtracting 320 from 340.
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 8:
200 divided by 80 is 2 with a remainder of 40.
The number 2 becomes the next digit in our result. 
Result so far: 5245.42
If we subtract 160 from 200, 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.

On to step 9:
80 can be fit into 400 5 times, resulting in a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 5245.425
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:
0 divided by 80 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 5245.425
Subtracting 0 from 0 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.

Step 11:
When dividing 0 by 80, we get 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 5245.425
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.

The final result is 5245.425 with a remainder of 0.0.