13280521 ÷ 436 
Let's see how many times 436 fits into 13280521.

Let's proceed to step 1:
If we divide 1 by 436, we get 0 and a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Include the next digit (3) from the dividend after 1, then repeat: 13 / 436

Going ahead to step 2:
436 goes into 13 0 times with a remainder of 13.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 13 and we're left with 13.
Bring next digit (2) of the dividend behind the 13 and repeat the process: 132 / 436

Moving on to step 3:
If we divide 132 by 436, we get 0 and a remainder of 132.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 132 to get 132.
Include the next digit (8) from the dividend after 132, then repeat: 1328 / 436

On to step 4:
1328 divided by 436 is 3 with a remainder of 20.
Write down 3 as next digit of the result. 
Result so far: 3.0
If we subtract 1308 from 1328, we get 20.
Fetch the next digit (0) from the dividend, attach it to 20 and continue: 200 / 436

Advancing to step 5:
If we divide 200 by 436, we get 0 and a remainder of 200.
Write down 0 as next digit of the result. 
Result so far: 30.0
Deduct 0 from 200 and we're left with 200.
Take the next digit (5) from the dividend and append it to 200, then repeat: 2005 / 436

Moving on to step 6:
If we divide 2005 by 436, we get 4 and a remainder of 261.
The next digit of our result is 4. 
Result so far: 304.0
If we subtract 1744 from 2005, we get 261.
Bring next digit (2) of the dividend behind the 261 and repeat the process: 2612 / 436

Step 7:
436 goes into 2612 5 times with a remainder of 432.
The number 5 becomes the next digit in our result. 
Result so far: 3045.0
The remainder is 432 after subtracting 2180 from 2612.
Fetch the next digit (1) from the dividend, attach it to 432 and continue: 4321 / 436

Step 8:
436 can be fit into 4321 9 times, resulting in a remainder of 397.
Record the quotient 9 as the next digit in the result. 
Result so far: 30459.0
If we take 3924 away from 4321, we end up with 397.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3970, and continue the process.

Let's proceed to step 9:
436 goes into 3970 9 times with a remainder of 46.
Use 9 as the next digit of our solution. 
Result so far: 30459.9
The remainder is 46 after subtracting 3924 from 3970.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Let's proceed to step 10:
The number 436 fits into 460 1 times, leaving a remainder of 24.
Write down 1 as next digit of the result. 
Result so far: 30459.91
If we take 436 away from 460, we end up with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

On to step 11:
The number 436 fits into 240 0 times, leaving a remainder of 240.
The number 0 becomes the next digit in our result. 
Result so far: 30459.91
If we subtract 0 from 240, we get 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Let's proceed to step 12:
The number 436 fits into 2400 5 times, leaving a remainder of 220.
Put 5 as the next digit of the answer. 
Result so far: 30459.9105
Subtracting 2180 from 2400 leaves us with 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Going ahead to step 13:
When dividing 2200 by 436, we get 5 with a remainder of 20.
Record the quotient 5 as the next digit in the result. 
Result so far: 30459.91055
The remainder is 20 after subtracting 2180 from 2200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

The final result is 30459.91055 with a remainder of 2e-05.