45543882 ÷ 900 
We want to figure out the number of times 45543882 can be divided by 900.

Advancing to step 1:
4 divided by 900 is 0 with a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Take the next digit (5) from the dividend and append it to 4, then repeat: 45 / 900

On to step 2:
When dividing 45 by 900, we get 0 with a remainder of 45.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 45, we end up with 45.
Include the next digit (5) from the dividend after 45, then repeat: 455 / 900

Advancing to step 3:
If we divide 455 by 900, we get 0 and a remainder of 455.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 455 leaves us with 455.
Bring next digit (4) of the dividend behind the 455 and repeat the process: 4554 / 900

Going ahead to step 4:
If we divide 4554 by 900, we get 5 and a remainder of 54.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
Deduct 4500 from 4554 and we're left with 54.
Include the next digit (3) from the dividend after 54, then repeat: 543 / 900

On to step 5:
900 goes into 543 0 times with a remainder of 543.
Record the quotient 0 as the next digit in the result. 
Result so far: 50.0
Subtracting 0 from 543 leaves us with 543.
Bring next digit (8) of the dividend behind the 543 and repeat the process: 5438 / 900

Going ahead to step 6:
900 can be fit into 5438 6 times, resulting in a remainder of 38.
Record the quotient 6 as the next digit in the result. 
Result so far: 506.0
If we take 5400 away from 5438, we end up with 38.
Bring next digit (8) of the dividend behind the 38 and repeat the process: 388 / 900

Moving on to step 7:
900 can be fit into 388 0 times, resulting in a remainder of 388.
Write down 0 as next digit of the result. 
Result so far: 5060.0
Subtracting 0 from 388 leaves us with 388.
Take the next digit (2) from the dividend and append it to 388, then repeat: 3882 / 900

Let's proceed to step 8:
If we divide 3882 by 900, we get 4 and a remainder of 282.
Record the quotient 4 as the next digit in the result. 
Result so far: 50604.0
If we take 3600 away from 3882, we end up with 282.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2820, and continue the process.

On to step 9:
900 can be fit into 2820 3 times, resulting in a remainder of 120.
Record the quotient 3 as the next digit in the result. 
Result so far: 50604.3
The remainder is 120 after subtracting 2700 from 2820.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Advancing to step 10:
If we divide 1200 by 900, we get 1 and a remainder of 300.
Put 1 as the next digit of the answer. 
Result so far: 50604.31
Subtract 900 from 1200 to get 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Let's proceed to step 11:
The number 900 fits into 3000 3 times, leaving a remainder of 300.
Use 3 as the next digit of our solution. 
Result so far: 50604.313
The remainder is 300 after subtracting 2700 from 3000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Let's proceed to step 12:
900 goes into 3000 3 times with a remainder of 300.
Put 3 as the next digit of the answer. 
Result so far: 50604.3133
If we subtract 2700 from 3000, we get 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

The quotient of the division is 50604.3133, and the remainder is 0.003.