903039 ÷ 4 
We want to figure out the number of times 903039 can be divided by 4.

On to step 1:
The number 4 fits into 9 2 times, leaving a remainder of 1.
Use 2 as the next digit of our solution. 
Result so far: 2.0
If we subtract 8 from 9, we get 1.
Grab the next digit (0) from the dividend, add it to 1, then carry on: 10 / 4

Advancing to step 2:
When dividing 10 by 4, we get 2 with a remainder of 2.
Use 2 as the next digit of our solution. 
Result so far: 22.0
If we take 8 away from 10, we end up with 2.
Take the next digit (3) from the dividend and append it to 2, then repeat: 23 / 4

Going ahead to step 3:
4 goes into 23 5 times with a remainder of 3.
The number 5 becomes the next digit in our result. 
Result so far: 225.0
Deduct 20 from 23 and we're left with 3.
Include the next digit (0) from the dividend after 3, then repeat: 30 / 4

Step 4:
When dividing 30 by 4, we get 7 with a remainder of 2.
Put 7 as the next digit of the answer. 
Result so far: 2257.0
The remainder is 2 after subtracting 28 from 30.
Bring next digit (3) of the dividend behind the 2 and repeat the process: 23 / 4

Moving on to step 5:
If we divide 23 by 4, we get 5 and a remainder of 3.
The next digit of our result is 5. 
Result so far: 22575.0
Deduct 20 from 23 and we're left with 3.
Include the next digit (9) from the dividend after 3, then repeat: 39 / 4

Step 6:
39 divided by 4 is 9 with a remainder of 3.
Record the quotient 9 as the next digit in the result. 
Result so far: 225759.0
Subtracting 36 from 39 leaves us with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Advancing to step 7:
When dividing 30 by 4, we get 7 with a remainder of 2.
Put 7 as the next digit of the answer. 
Result so far: 225759.7
The remainder is 2 after subtracting 28 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 8:
If we divide 20 by 4, we get 5 and a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 225759.75
Subtracting 20 from 20 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 9:
0 divided by 4 is 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 225759.75
If we subtract 0 from 0, we 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.

Advancing to step 10:
0 divided by 4 is 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 225759.75
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.

The quotient of the division is 225759.75, and the remainder is 0.0.