We're dividing 45915539 by 903 
Our goal is to divide 45915539 by 903.

Going ahead to step 1:
When dividing 4 by 903, we get 0 with a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Fetch the next digit (5) from the dividend, attach it to 4 and continue: 45 / 903

Going ahead to step 2:
903 can be fit into 45 0 times, resulting in a remainder of 45.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 45 to get 45.
Include the next digit (9) from the dividend after 45, then repeat: 459 / 903

Advancing to step 3:
903 goes into 459 0 times with a remainder of 459.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 459 after subtracting 0 from 459.
Bring next digit (1) of the dividend behind the 459 and repeat the process: 4591 / 903

Let's proceed to step 4:
If we divide 4591 by 903, we get 5 and a remainder of 76.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
If we take 4515 away from 4591, we end up with 76.
Append the next digit (5) from the dividend to 76 and continue with: 765 / 903

Going ahead to step 5:
903 can be fit into 765 0 times, resulting in a remainder of 765.
Record the quotient 0 as the next digit in the result. 
Result so far: 50.0
If we subtract 0 from 765, we get 765.
Grab the next digit (5) from the dividend, add it to 765, then carry on: 7655 / 903

Advancing to step 6:
903 can be fit into 7655 8 times, resulting in a remainder of 431.
Record the quotient 8 as the next digit in the result. 
Result so far: 508.0
If we take 7224 away from 7655, we end up with 431.
Grab the next digit (3) from the dividend, add it to 431, then carry on: 4313 / 903

Moving on to step 7:
903 can be fit into 4313 4 times, resulting in a remainder of 701.
Write down 4 as next digit of the result. 
Result so far: 5084.0
The remainder is 701 after subtracting 3612 from 4313.
Take the next digit (9) from the dividend and append it to 701, then repeat: 7019 / 903

On to step 8:
903 goes into 7019 7 times with a remainder of 698.
Record the quotient 7 as the next digit in the result. 
Result so far: 50847.0
Subtract 6321 from 7019 to get 698.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6980, and continue the process.

Step 9:
When dividing 6980 by 903, we get 7 with a remainder of 659.
Write down 7 as next digit of the result. 
Result so far: 50847.7
If we subtract 6321 from 6980, we get 659.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6590, and continue the process.

On to step 10:
6590 divided by 903 is 7 with a remainder of 269.
Record the quotient 7 as the next digit in the result. 
Result so far: 50847.77
If we subtract 6321 from 6590, we get 269.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2690, and continue the process.

The final outcome is 50847.77, with a leftover of 0.269.