We're dividing 353717 by 80 
We want to divide 353717 by 80.

On to step 1:
When dividing 3 by 80, we get 0 with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Append the next digit (5) from the dividend to 3 and continue with: 35 / 80

Moving on to step 2:
80 can be fit into 35 0 times, resulting in a remainder of 35.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 35 and we're left with 35.
Bring next digit (3) of the dividend behind the 35 and repeat the process: 353 / 80

On to step 3:
If we divide 353 by 80, we get 4 and a remainder of 33.
Write down 4 as next digit of the result. 
Result so far: 4.0
The remainder is 33 after subtracting 320 from 353.
Take the next digit (7) from the dividend and append it to 33, then repeat: 337 / 80

On to step 4:
The number 80 fits into 337 4 times, leaving a remainder of 17.
The number 4 becomes the next digit in our result. 
Result so far: 44.0
Subtract 320 from 337 to get 17.
Include the next digit (1) from the dividend after 17, then repeat: 171 / 80

Step 5:
The number 80 fits into 171 2 times, leaving a remainder of 11.
Write down 2 as next digit of the result. 
Result so far: 442.0
If we take 160 away from 171, we end up with 11.
Fetch the next digit (7) from the dividend, attach it to 11 and continue: 117 / 80

Going ahead to step 6:
If we divide 117 by 80, we get 1 and a remainder of 37.
The number 1 becomes the next digit in our result. 
Result so far: 4421.0
Subtract 80 from 117 to get 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.
Write down 4 as next digit of the result. 
Result so far: 4421.4
Subtracting 320 from 370 leaves us 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 can be fit into 500 6 times, resulting in a remainder of 20.
Put 6 as the next digit of the answer. 
Result so far: 4421.46
The remainder is 20 after subtracting 480 from 500.
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:
When dividing 200 by 80, we get 2 with a remainder of 40.
Write down 2 as next digit of the result. 
Result so far: 4421.462
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.

On 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: 4421.4625
Deduct 400 from 400 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.

Step 11:
When dividing 0 by 80, we get 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 4421.4625
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.

Step 12:
80 can be fit into 0 0 times, resulting in a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 4421.4625
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.

After the division, we end up with 4421.4625 and a remainder of 0.0.