We're dividing 43999043 by 577 
Let's see how many times 577 fits into 43999043.

On to step 1:
4 divided by 577 is 0 with a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Append the next digit (3) from the dividend to 4 and continue with: 43 / 577

Going ahead to step 2:
The number 577 fits into 43 0 times, leaving a remainder of 43.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 43 and we're left with 43.
Fetch the next digit (9) from the dividend, attach it to 43 and continue: 439 / 577

Moving on to step 3:
439 divided by 577 is 0 with a remainder of 439.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 439 and we're left with 439.
Take the next digit (9) from the dividend and append it to 439, then repeat: 4399 / 577

Advancing to step 4:
4399 divided by 577 is 7 with a remainder of 360.
Put 7 as the next digit of the answer. 
Result so far: 7.0
If we subtract 4039 from 4399, we get 360.
Bring next digit (9) of the dividend behind the 360 and repeat the process: 3609 / 577

Going ahead to step 5:
The number 577 fits into 3609 6 times, leaving a remainder of 147.
Record the quotient 6 as the next digit in the result. 
Result so far: 76.0
If we take 3462 away from 3609, we end up with 147.
Include the next digit (0) from the dividend after 147, then repeat: 1470 / 577

Let's proceed to step 6:
577 can be fit into 1470 2 times, resulting in a remainder of 316.
Use 2 as the next digit of our solution. 
Result so far: 762.0
If we subtract 1154 from 1470, we get 316.
Fetch the next digit (4) from the dividend, attach it to 316 and continue: 3164 / 577

On to step 7:
3164 divided by 577 is 5 with a remainder of 279.
Use 5 as the next digit of our solution. 
Result so far: 7625.0
The remainder is 279 after subtracting 2885 from 3164.
Append the next digit (3) from the dividend to 279 and continue with: 2793 / 577

Advancing to step 8:
When dividing 2793 by 577, we get 4 with a remainder of 485.
Record the quotient 4 as the next digit in the result. 
Result so far: 76254.0
If we take 2308 away from 2793, we end up with 485.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4850, and continue the process.

Advancing to step 9:
577 can be fit into 4850 8 times, resulting in a remainder of 234.
Write down 8 as next digit of the result. 
Result so far: 76254.8
The remainder is 234 after subtracting 4616 from 4850.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2340, and continue the process.

On to step 10:
577 can be fit into 2340 4 times, resulting in a remainder of 32.
Record the quotient 4 as the next digit in the result. 
Result so far: 76254.84
If we take 2308 away from 2340, we end up with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

On to step 11:
The number 577 fits into 320 0 times, leaving a remainder of 320.
The next digit of our result is 0. 
Result so far: 76254.84
If we subtract 0 from 320, we get 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Going ahead to step 12:
The number 577 fits into 3200 5 times, leaving a remainder of 315.
Put 5 as the next digit of the answer. 
Result so far: 76254.8405
If we subtract 2885 from 3200, we get 315.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3150, and continue the process.

Going ahead to step 13:
577 goes into 3150 5 times with a remainder of 265.
Write down 5 as next digit of the result. 
Result so far: 76254.84055
If we subtract 2885 from 3150, we get 265.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2650, and continue the process.

The final result is 76254.84055 with a remainder of 0.000265.