We look at the division of 903039 by 48 
We want to divide 903039 by 48.

Moving on to step 1:
The number 48 fits into 9 0 times, leaving a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Fetch the next digit (0) from the dividend, attach it to 9 and continue: 90 / 48

Going ahead to step 2:
When dividing 90 by 48, we get 1 with a remainder of 42.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtract 48 from 90 to get 42.
Grab the next digit (3) from the dividend, add it to 42, then carry on: 423 / 48

Advancing to step 3:
48 can be fit into 423 8 times, resulting in a remainder of 39.
Put 8 as the next digit of the answer. 
Result so far: 18.0
If we take 384 away from 423, we end up with 39.
Bring next digit (0) of the dividend behind the 39 and repeat the process: 390 / 48

Going ahead to step 4:
390 divided by 48 is 8 with a remainder of 6.
The next digit of our result is 8. 
Result so far: 188.0
Subtracting 384 from 390 leaves us with 6.
Take the next digit (3) from the dividend and append it to 6, then repeat: 63 / 48

Let's proceed to step 5:
48 can be fit into 63 1 times, resulting in a remainder of 15.
The number 1 becomes the next digit in our result. 
Result so far: 1881.0
Subtracting 48 from 63 leaves us with 15.
Grab the next digit (9) from the dividend, add it to 15, then carry on: 159 / 48

Step 6:
48 can be fit into 159 3 times, resulting in a remainder of 15.
Record the quotient 3 as the next digit in the result. 
Result so far: 18813.0
If we take 144 away from 159, we end up with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

On to step 7:
48 goes into 150 3 times with a remainder of 6.
Record the quotient 3 as the next digit in the result. 
Result so far: 18813.3
The remainder is 6 after subtracting 144 from 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 8:
When dividing 60 by 48, we get 1 with a remainder of 12.
Put 1 as the next digit of the answer. 
Result so far: 18813.31
Subtract 48 from 60 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Let's proceed to step 9:
48 goes into 120 2 times with a remainder of 24.
Write down 2 as next digit of the result. 
Result so far: 18813.312
Deduct 96 from 120 and we're left 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 10:
The number 48 fits into 240 5 times, leaving a remainder of 0.
The next digit of our result is 5. 
Result so far: 18813.3125
If we subtract 240 from 240, 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.

Moving on to step 11:
When dividing 0 by 48, we get 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 18813.3125
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.

Step 12:
If we divide 0 by 48, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 18813.3125
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.

Our division results in 18813.3125 with a remaining 0.0.