We're dividing 903434 by 18 
We want to figure out the number of times 903434 can be divided by 18.

Let's proceed to step 1:
If we divide 9 by 18, we get 0 and a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Append the next digit (0) from the dividend to 9 and continue with: 90 / 18

Step 2:
18 can be fit into 90 5 times, resulting in a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 5.0
If we take 90 away from 90, we end up with 0.
Include the next digit (3) from the dividend after 0, then repeat: 3 / 18

On to step 3:
When dividing 3 by 18, we get 0 with a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 50.0
If we subtract 0 from 3, we get 3.
Append the next digit (4) from the dividend to 3 and continue with: 34 / 18

On to step 4:
The number 18 fits into 34 1 times, leaving a remainder of 16.
Put 1 as the next digit of the answer. 
Result so far: 501.0
Subtracting 18 from 34 leaves us with 16.
Include the next digit (3) from the dividend after 16, then repeat: 163 / 18

Let's proceed to step 5:
The number 18 fits into 163 9 times, leaving a remainder of 1.
Use 9 as the next digit of our solution. 
Result so far: 5019.0
Deduct 162 from 163 and we're left with 1.
Append the next digit (4) from the dividend to 1 and continue with: 14 / 18

Let's proceed to step 6:
14 divided by 18 is 0 with a remainder of 14.
Write down 0 as next digit of the result. 
Result so far: 50190.0
Subtract 0 from 14 to get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 7:
140 divided by 18 is 7 with a remainder of 14.
Use 7 as the next digit of our solution. 
Result so far: 50190.7
If we take 126 away from 140, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Moving on to step 8:
The number 18 fits into 140 7 times, leaving a remainder of 14.
Put 7 as the next digit of the answer. 
Result so far: 50190.77
If we take 126 away from 140, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Our division results in 50190.77 with a remaining 0.014.