43037179 ÷ 521 
We're looking to find how many times 521 goes into 43037179.

Step 1:
521 can be fit into 4 0 times, resulting in a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Fetch the next digit (3) from the dividend, attach it to 4 and continue: 43 / 521

Advancing to step 2:
521 can be fit into 43 0 times, resulting in a remainder of 43.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 43, we end up with 43.
Fetch the next digit (0) from the dividend, attach it to 43 and continue: 430 / 521

Let's proceed to step 3:
When dividing 430 by 521, we get 0 with a remainder of 430.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 430 after subtracting 0 from 430.
Include the next digit (3) from the dividend after 430, then repeat: 4303 / 521

Going ahead to step 4:
The number 521 fits into 4303 8 times, leaving a remainder of 135.
The next digit of our result is 8. 
Result so far: 8.0
Deduct 4168 from 4303 and we're left with 135.
Fetch the next digit (7) from the dividend, attach it to 135 and continue: 1357 / 521

Step 5:
If we divide 1357 by 521, we get 2 and a remainder of 315.
Use 2 as the next digit of our solution. 
Result so far: 82.0
If we subtract 1042 from 1357, we get 315.
Include the next digit (1) from the dividend after 315, then repeat: 3151 / 521

Step 6:
If we divide 3151 by 521, we get 6 and a remainder of 25.
Put 6 as the next digit of the answer. 
Result so far: 826.0
Subtract 3126 from 3151 to get 25.
Bring next digit (7) of the dividend behind the 25 and repeat the process: 257 / 521

Let's proceed to step 7:
If we divide 257 by 521, we get 0 and a remainder of 257.
Put 0 as the next digit of the answer. 
Result so far: 8260.0
Subtracting 0 from 257 leaves us with 257.
Include the next digit (9) from the dividend after 257, then repeat: 2579 / 521

On to step 8:
If we divide 2579 by 521, we get 4 and a remainder of 495.
Put 4 as the next digit of the answer. 
Result so far: 82604.0
Subtracting 2084 from 2579 leaves us with 495.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4950, and continue the process.

Step 9:
4950 divided by 521 is 9 with a remainder of 261.
Write down 9 as next digit of the result. 
Result so far: 82604.9
If we take 4689 away from 4950, we end up with 261.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2610, and continue the process.

On to step 10:
521 goes into 2610 5 times with a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 82604.95
Deduct 2605 from 2610 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Advancing to step 11:
521 goes into 50 0 times with a remainder of 50.
The number 0 becomes the next digit in our result. 
Result so far: 82604.95
Deduct 0 from 50 and we're left with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 12:
521 can be fit into 500 0 times, resulting in a remainder of 500.
Record the quotient 0 as the next digit in the result. 
Result so far: 82604.95
If we subtract 0 from 500, we get 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5000, and continue the process.

The final outcome is 82604.95, with a leftover of 0.005.