Let's divide 435398 by 15
Let's see how many times 15 fits into 435398.

Step 1:
The number 15 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
If we take 0 away from 4, we end up with 4.
Fetch the next digit (3) from the dividend, attach it to 4 and continue: 43 / 15

Let's proceed to step 2:
When dividing 43 by 15, we get 2 with a remainder of 13.
The next digit of our result is 2. 
Result so far: 2.0
Subtract 30 from 43 to get 13.
Bring next digit (5) of the dividend behind the 13 and repeat the process: 135 / 15

Let's proceed to step 3:
135 divided by 15 is 9 with a remainder of 0.
Write down 9 as next digit of the result. 
Result so far: 29.0
Subtracting 135 from 135 leaves us with 0.
Bring next digit (3) of the dividend behind the 0 and repeat the process: 3 / 15

Step 4:
15 can be fit into 3 0 times, resulting in a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 290.0
Deduct 0 from 3 and we're left with 3.
Include the next digit (9) from the dividend after 3, then repeat: 39 / 15

Let's proceed to step 5:
15 goes into 39 2 times with a remainder of 9.
The next digit of our result is 2. 
Result so far: 2902.0
Deduct 30 from 39 and we're left with 9.
Bring next digit (8) of the dividend behind the 9 and repeat the process: 98 / 15

Moving on to step 6:
When dividing 98 by 15, we get 6 with a remainder of 8.
Write down 6 as next digit of the result. 
Result so far: 29026.0
Subtracting 90 from 98 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 7:
The number 15 fits into 80 5 times, leaving a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 29026.5
Subtracting 75 from 80 leaves us with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 8:
If we divide 50 by 15, we get 3 and a remainder of 5.
Write down 3 as next digit of the result. 
Result so far: 29026.53
Subtract 45 from 50 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Going ahead to step 9:
The number 15 fits into 50 3 times, leaving a remainder of 5.
The number 3 becomes the next digit in our result. 
Result so far: 29026.533
If we take 45 away from 50, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

The quotient of the division is 29026.533, and the remainder is 0.0005.