We're dividing 551268 by 45 
Let's see how many times 45 fits into 551268.

Going ahead to step 1:
The number 45 fits into 5 0 times, leaving a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Append the next digit (5) from the dividend to 5 and continue with: 55 / 45

Going ahead to step 2:
45 goes into 55 1 times with a remainder of 10.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 45 from 55, we get 10.
Append the next digit (1) from the dividend to 10 and continue with: 101 / 45

Step 3:
45 can be fit into 101 2 times, resulting in a remainder of 11.
Use 2 as the next digit of our solution. 
Result so far: 12.0
Deduct 90 from 101 and we're left with 11.
Take the next digit (2) from the dividend and append it to 11, then repeat: 112 / 45

Going ahead to step 4:
If we divide 112 by 45, we get 2 and a remainder of 22.
Put 2 as the next digit of the answer. 
Result so far: 122.0
The remainder is 22 after subtracting 90 from 112.
Bring next digit (6) of the dividend behind the 22 and repeat the process: 226 / 45

Step 5:
When dividing 226 by 45, we get 5 with a remainder of 1.
Use 5 as the next digit of our solution. 
Result so far: 1225.0
Subtracting 225 from 226 leaves us with 1.
Include the next digit (8) from the dividend after 1, then repeat: 18 / 45

On to step 6:
The number 45 fits into 18 0 times, leaving a remainder of 18.
Record the quotient 0 as the next digit in the result. 
Result so far: 12250.0
The remainder is 18 after subtracting 0 from 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Let's proceed to step 7:
45 goes into 180 4 times with a remainder of 0.
The next digit of our result is 4. 
Result so far: 12250.4
If we take 180 away from 180, we end up 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 8:
If we divide 0 by 45, we get 0 and a remainder of 0.
The next digit of our result is 0. 
Result so far: 12250.4
Deduct 0 from 0 and we're left 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.

Step 9:
If we divide 0 by 45, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 12250.4
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.

In conclusion, the division gives 12250.4 with a balance of 0.0.