428191 divided by 80 
We want to divide 428191 by 80.

Moving on to step 1:
80 can be fit into 4 0 times, resulting in a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Append the next digit (2) from the dividend to 4 and continue with: 42 / 80

Step 2:
When dividing 42 by 80, we get 0 with a remainder of 42.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 42, we end up with 42.
Grab the next digit (8) from the dividend, add it to 42, then carry on: 428 / 80

Going ahead to step 3:
If we divide 428 by 80, we get 5 and a remainder of 28.
Use 5 as the next digit of our solution. 
Result so far: 5.0
The remainder is 28 after subtracting 400 from 428.
Bring next digit (1) of the dividend behind the 28 and repeat the process: 281 / 80

Step 4:
The number 80 fits into 281 3 times, leaving a remainder of 41.
Record the quotient 3 as the next digit in the result. 
Result so far: 53.0
If we subtract 240 from 281, we get 41.
Grab the next digit (9) from the dividend, add it to 41, then carry on: 419 / 80

On to step 5:
If we divide 419 by 80, we get 5 and a remainder of 19.
The next digit of our result is 5. 
Result so far: 535.0
The remainder is 19 after subtracting 400 from 419.
Append the next digit (1) from the dividend to 19 and continue with: 191 / 80

Advancing to step 6:
If we divide 191 by 80, we get 2 and a remainder of 31.
Use 2 as the next digit of our solution. 
Result so far: 5352.0
Subtracting 160 from 191 leaves us with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Going ahead to step 7:
310 divided by 80 is 3 with a remainder of 70.
Write down 3 as next digit of the result. 
Result so far: 5352.3
If we take 240 away from 310, we end up with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Advancing to step 8:
80 goes into 700 8 times with a remainder of 60.
Write down 8 as next digit of the result. 
Result so far: 5352.38
The remainder is 60 after subtracting 640 from 700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 9:
The number 80 fits into 600 7 times, leaving a remainder of 40.
Record the quotient 7 as the next digit in the result. 
Result so far: 5352.387
Subtracting 560 from 600 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.

Going ahead to step 10:
80 can be fit into 400 5 times, resulting in a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 5352.3875
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.

Let's proceed to step 11:
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: 5352.3875
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.

Going ahead to step 12:
The number 80 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 5352.3875
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.

After the division, we end up with 5352.3875 and a remainder of 0.0.