We're dividing 40551780 by 800 
We're looking to find how many times 800 goes into 40551780.

Advancing to step 1:
If we divide 4 by 800, we get 0 and a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Take the next digit (0) from the dividend and append it to 4, then repeat: 40 / 800

Step 2:
800 can be fit into 40 0 times, resulting in a remainder of 40.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 40 after subtracting 0 from 40.
Fetch the next digit (5) from the dividend, attach it to 40 and continue: 405 / 800

Let's proceed to step 3:
If we divide 405 by 800, we get 0 and a remainder of 405.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 405, we get 405.
Fetch the next digit (5) from the dividend, attach it to 405 and continue: 4055 / 800

Going ahead to step 4:
The number 800 fits into 4055 5 times, leaving a remainder of 55.
Put 5 as the next digit of the answer. 
Result so far: 5.0
If we take 4000 away from 4055, we end up with 55.
Include the next digit (1) from the dividend after 55, then repeat: 551 / 800

Going ahead to step 5:
When dividing 551 by 800, we get 0 with a remainder of 551.
Use 0 as the next digit of our solution. 
Result so far: 50.0
If we subtract 0 from 551, we get 551.
Append the next digit (7) from the dividend to 551 and continue with: 5517 / 800

Going ahead to step 6:
800 goes into 5517 6 times with a remainder of 717.
The next digit of our result is 6. 
Result so far: 506.0
Subtract 4800 from 5517 to get 717.
Fetch the next digit (8) from the dividend, attach it to 717 and continue: 7178 / 800

Moving on to step 7:
7178 divided by 800 is 8 with a remainder of 778.
Use 8 as the next digit of our solution. 
Result so far: 5068.0
If we take 6400 away from 7178, we end up with 778.
Grab the next digit (0) from the dividend, add it to 778, then carry on: 7780 / 800

On to step 8:
When dividing 7780 by 800, we get 9 with a remainder of 580.
The number 9 becomes the next digit in our result. 
Result so far: 50689.0
Subtracting 7200 from 7780 leaves us with 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5800, and continue the process.

Moving on to step 9:
When dividing 5800 by 800, we get 7 with a remainder of 200.
Put 7 as the next digit of the answer. 
Result so far: 50689.7
If we take 5600 away from 5800, we end up with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Advancing to step 10:
800 can be fit into 2000 2 times, resulting in a remainder of 400.
The next digit of our result is 2. 
Result so far: 50689.72
If we take 1600 away from 2000, we end up with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Moving on to step 11:
When dividing 4000 by 800, we get 5 with a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 50689.725
The remainder is 0 after subtracting 4000 from 4000.
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:
The number 800 fits into 0 0 times, leaving a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 50689.725
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 13:
If we divide 0 by 800, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 50689.725
Subtracting 0 from 0 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.

After the division, we end up with 50689.725 and a remainder of 0.0.