We're dividing 420194 by 80 
Let's see how many times 80 fits into 420194.

Going ahead to step 1:
4 divided by 80 is 0 with 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.
Append the next digit (2) from the dividend to 4 and continue with: 42 / 80

Moving on to step 2:
80 goes into 42 0 times with a remainder of 42.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 42 and we're left with 42.
Fetch the next digit (0) from the dividend, attach it to 42 and continue: 420 / 80

Moving on to step 3:
80 goes into 420 5 times with a remainder of 20.
The next digit of our result is 5. 
Result so far: 5.0
Subtract 400 from 420 to get 20.
Grab the next digit (1) from the dividend, add it to 20, then carry on: 201 / 80

Let's proceed to step 4:
If we divide 201 by 80, we get 2 and a remainder of 41.
The number 2 becomes the next digit in our result. 
Result so far: 52.0
Deduct 160 from 201 and we're left with 41.
Take the next digit (9) from the dividend and append it to 41, then repeat: 419 / 80

Going ahead to step 5:
80 can be fit into 419 5 times, resulting in a remainder of 19.
Put 5 as the next digit of the answer. 
Result so far: 525.0
If we subtract 400 from 419, we get 19.
Include the next digit (4) from the dividend after 19, then repeat: 194 / 80

Moving on to step 6:
The number 80 fits into 194 2 times, leaving a remainder of 34.
The number 2 becomes the next digit in our result. 
Result so far: 5252.0
Subtracting 160 from 194 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:
If we divide 340 by 80, we get 4 and a remainder of 20.
Use 4 as the next digit of our solution. 
Result so far: 5252.4
Subtract 320 from 340 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.

Moving on to step 8:
If we divide 200 by 80, we get 2 and a remainder of 40.
The number 2 becomes the next digit in our result. 
Result so far: 5252.42
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.

Moving on to step 9:
When dividing 400 by 80, we get 5 with a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 5252.425
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.

Moving on to step 10:
0 divided by 80 is 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 5252.425
If we subtract 0 from 0, 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.

Let's proceed to step 11:
The number 80 fits into 0 0 times, leaving a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 5252.425
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 5252.425 with a remainder of 0.0.