430355 divided by 80 
We want to figure out the number of times 430355 can be divided by 80.

Step 1:
The number 80 fits into 4 0 times, leaving a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Bring next digit (3) of the dividend behind the 4 and repeat the process: 43 / 80

Advancing to step 2:
The number 80 fits into 43 0 times, leaving a remainder of 43.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 43 to get 43.
Append the next digit (0) from the dividend to 43 and continue with: 430 / 80

Going ahead to step 3:
430 divided by 80 is 5 with a remainder of 30.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
Subtract 400 from 430 to get 30.
Append the next digit (3) from the dividend to 30 and continue with: 303 / 80

Let's proceed to step 4:
When dividing 303 by 80, we get 3 with a remainder of 63.
Record the quotient 3 as the next digit in the result. 
Result so far: 53.0
If we take 240 away from 303, we end up with 63.
Append the next digit (5) from the dividend to 63 and continue with: 635 / 80

Step 5:
635 divided by 80 is 7 with a remainder of 75.
Record the quotient 7 as the next digit in the result. 
Result so far: 537.0
Subtract 560 from 635 to get 75.
Take the next digit (5) from the dividend and append it to 75, then repeat: 755 / 80

Let's proceed to step 6:
If we divide 755 by 80, we get 9 and a remainder of 35.
Use 9 as the next digit of our solution. 
Result so far: 5379.0
If we subtract 720 from 755, we get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Moving on to step 7:
80 can be fit into 350 4 times, resulting in a remainder of 30.
Put 4 as the next digit of the answer. 
Result so far: 5379.4
Subtracting 320 from 350 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 8:
The number 80 fits into 300 3 times, leaving a remainder of 60.
The next digit of our result is 3. 
Result so far: 5379.43
The remainder is 60 after subtracting 240 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

On to step 9:
The number 80 fits into 600 7 times, leaving a remainder of 40.
Put 7 as the next digit of the answer. 
Result so far: 5379.437
If we take 560 away from 600, we end up 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:
The number 80 fits into 400 5 times, leaving a remainder of 0.
The next digit of our result is 5. 
Result so far: 5379.4375
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: 5379.4375
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.

Step 12:
If we divide 0 by 80, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 5379.4375
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.

Our division results in 5379.4375 with a remaining 0.0.