Let's divide 435121 by 80
Let's see how many times 80 fits into 435121.

Let's proceed to step 1:
4 divided by 80 is 0 with a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Bring next digit (3) of the dividend behind the 4 and repeat the process: 43 / 80

Step 2:
The number 80 fits into 43 0 times, leaving a remainder of 43.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 43 and we're left with 43.
Grab the next digit (5) from the dividend, add it to 43, then carry on: 435 / 80

On to step 3:
80 can be fit into 435 5 times, resulting in a remainder of 35.
Use 5 as the next digit of our solution. 
Result so far: 5.0
Deduct 400 from 435 and we're left with 35.
Fetch the next digit (1) from the dividend, attach it to 35 and continue: 351 / 80

Going ahead to step 4:
80 can be fit into 351 4 times, resulting in a remainder of 31.
The number 4 becomes the next digit in our result. 
Result so far: 54.0
If we take 320 away from 351, we end up with 31.
Fetch the next digit (2) from the dividend, attach it to 31 and continue: 312 / 80

Going ahead to step 5:
The number 80 fits into 312 3 times, leaving a remainder of 72.
Record the quotient 3 as the next digit in the result. 
Result so far: 543.0
The remainder is 72 after subtracting 240 from 312.
Bring next digit (1) of the dividend behind the 72 and repeat the process: 721 / 80

Let's proceed to step 6:
80 can be fit into 721 9 times, resulting in a remainder of 1.
The number 9 becomes the next digit in our result. 
Result so far: 5439.0
Subtracting 720 from 721 leaves us with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Let's proceed to step 7:
If we divide 10 by 80, we get 0 and a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 5439.0
Subtracting 0 from 10 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 8:
80 goes into 100 1 times with a remainder of 20.
Record the quotient 1 as the next digit in the result. 
Result so far: 5439.01
If we subtract 80 from 100, we 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.

Going ahead to step 9:
80 can be fit into 200 2 times, resulting in a remainder of 40.
The next digit of our result is 2. 
Result so far: 5439.012
If we take 160 away from 200, 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.

Going ahead to step 10:
80 can be fit into 400 5 times, resulting in a remainder of 0.
The next digit of our result is 5. 
Result so far: 5439.0125
The remainder is 0 after subtracting 400 from 400.
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 11:
80 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 5439.0125
The remainder is 0 after subtracting 0 from 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 12:
0 divided by 80 is 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 5439.0125
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.

Our division results in 5439.0125 with a remaining 0.0.