45043518 ÷ 80 
We want to divide 45043518 by 80.

Let's proceed to step 1:
80 can be fit into 4 0 times, resulting in a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Take the next digit (5) from the dividend and append it to 4, then repeat: 45 / 80

Let's proceed to step 2:
80 can be fit into 45 0 times, resulting in a remainder of 45.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 45, we get 45.
Fetch the next digit (0) from the dividend, attach it to 45 and continue: 450 / 80

On to step 3:
When dividing 450 by 80, we get 5 with a remainder of 50.
The next digit of our result is 5. 
Result so far: 5.0
Subtracting 400 from 450 leaves us with 50.
Bring next digit (4) of the dividend behind the 50 and repeat the process: 504 / 80

Advancing to step 4:
If we divide 504 by 80, we get 6 and a remainder of 24.
Use 6 as the next digit of our solution. 
Result so far: 56.0
Deduct 480 from 504 and we're left with 24.
Grab the next digit (3) from the dividend, add it to 24, then carry on: 243 / 80

Step 5:
The number 80 fits into 243 3 times, leaving a remainder of 3.
The number 3 becomes the next digit in our result. 
Result so far: 563.0
Subtract 240 from 243 to get 3.
Append the next digit (5) from the dividend to 3 and continue with: 35 / 80

Let's proceed to step 6:
If we divide 35 by 80, we get 0 and a remainder of 35.
Use 0 as the next digit of our solution. 
Result so far: 5630.0
If we take 0 away from 35, we end up with 35.
Fetch the next digit (1) from the dividend, attach it to 35 and continue: 351 / 80

Let's proceed to step 7:
80 can be fit into 351 4 times, resulting in a remainder of 31.
Use 4 as the next digit of our solution. 
Result so far: 56304.0
If we take 320 away from 351, we end up with 31.
Append the next digit (8) from the dividend to 31 and continue with: 318 / 80

Moving on to step 8:
318 divided by 80 is 3 with a remainder of 78.
The next digit of our result is 3. 
Result so far: 563043.0
If we take 240 away from 318, we end up with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Going ahead to step 9:
780 divided by 80 is 9 with a remainder of 60.
The next digit of our result is 9. 
Result so far: 563043.9
Subtracting 720 from 780 leaves us with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Going ahead to step 10:
The number 80 fits into 600 7 times, leaving a remainder of 40.
Record the quotient 7 as the next digit in the result. 
Result so far: 563043.97
The remainder is 40 after subtracting 560 from 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 11:
When dividing 400 by 80, we get 5 with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 563043.975
Subtract 400 from 400 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.

Let's proceed to step 12:
0 divided by 80 is 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 563043.975
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.

Going ahead to step 13:
If we divide 0 by 80, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 563043.975
If we take 0 away from 0, 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.

The final result is 563043.975 with a remainder of 0.0.