423875 divided by 9 
Let's see how many times 9 fits into 423875.

On to step 1:
4 divided by 9 is 0 with a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Bring next digit (2) of the dividend behind the 4 and repeat the process: 42 / 9

Moving on to step 2:
The number 9 fits into 42 4 times, leaving a remainder of 6.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
Deduct 36 from 42 and we're left with 6.
Include the next digit (3) from the dividend after 6, then repeat: 63 / 9

Step 3:
When dividing 63 by 9, we get 7 with a remainder of 0.
Put 7 as the next digit of the answer. 
Result so far: 47.0
Subtracting 63 from 63 leaves us with 0.
Fetch the next digit (8) from the dividend, attach it to 0 and continue: 8 / 9

Advancing to step 4:
If we divide 8 by 9, we get 0 and a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 470.0
The remainder is 8 after subtracting 0 from 8.
Include the next digit (7) from the dividend after 8, then repeat: 87 / 9

Advancing to step 5:
If we divide 87 by 9, we get 9 and a remainder of 6.
The next digit of our result is 9. 
Result so far: 4709.0
Subtracting 81 from 87 leaves us with 6.
Fetch the next digit (5) from the dividend, attach it to 6 and continue: 65 / 9

Advancing to step 6:
When dividing 65 by 9, we get 7 with a remainder of 2.
The number 7 becomes the next digit in our result. 
Result so far: 47097.0
If we subtract 63 from 65, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 7:
9 can be fit into 20 2 times, resulting in a remainder of 2.
Record the quotient 2 as the next digit in the result. 
Result so far: 47097.2
The remainder is 2 after subtracting 18 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 8:
20 divided by 9 is 2 with a remainder of 2.
Use 2 as the next digit of our solution. 
Result so far: 47097.22
Subtracting 18 from 20 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

The quotient of the division is 47097.22, and the remainder is 0.002.