We divide 43221751 by 521
Let's see how many times 521 fits into 43221751.

Step 1:
If we divide 4 by 521, we get 0 and a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Take the next digit (3) from the dividend and append it to 4, then repeat: 43 / 521

Advancing to step 2:
521 can be fit into 43 0 times, resulting in a remainder of 43.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 43 and we're left with 43.
Take the next digit (2) from the dividend and append it to 43, then repeat: 432 / 521

Advancing to step 3:
If we divide 432 by 521, we get 0 and a remainder of 432.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 432 leaves us with 432.
Include the next digit (2) from the dividend after 432, then repeat: 4322 / 521

Advancing to step 4:
When dividing 4322 by 521, we get 8 with a remainder of 154.
Write down 8 as next digit of the result. 
Result so far: 8.0
If we take 4168 away from 4322, we end up with 154.
Fetch the next digit (1) from the dividend, attach it to 154 and continue: 1541 / 521

Step 5:
If we divide 1541 by 521, we get 2 and a remainder of 499.
Put 2 as the next digit of the answer. 
Result so far: 82.0
If we take 1042 away from 1541, we end up with 499.
Bring next digit (7) of the dividend behind the 499 and repeat the process: 4997 / 521

Advancing to step 6:
521 can be fit into 4997 9 times, resulting in a remainder of 308.
Use 9 as the next digit of our solution. 
Result so far: 829.0
If we subtract 4689 from 4997, we get 308.
Grab the next digit (5) from the dividend, add it to 308, then carry on: 3085 / 521

Let's proceed to step 7:
3085 divided by 521 is 5 with a remainder of 480.
Put 5 as the next digit of the answer. 
Result so far: 8295.0
The remainder is 480 after subtracting 2605 from 3085.
Append the next digit (1) from the dividend to 480 and continue with: 4801 / 521

On to step 8:
521 can be fit into 4801 9 times, resulting in a remainder of 112.
The number 9 becomes the next digit in our result. 
Result so far: 82959.0
If we take 4689 away from 4801, we end up with 112.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

Advancing to step 9:
521 goes into 1120 2 times with a remainder of 78.
Write down 2 as next digit of the result. 
Result so far: 82959.2
If we subtract 1042 from 1120, we get 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

On to step 10:
If we divide 780 by 521, we get 1 and a remainder of 259.
The number 1 becomes the next digit in our result. 
Result so far: 82959.21
Subtracting 521 from 780 leaves us with 259.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2590, and continue the process.

Advancing to step 11:
521 can be fit into 2590 4 times, resulting in a remainder of 506.
Write down 4 as next digit of the result. 
Result so far: 82959.214
Subtract 2084 from 2590 to get 506.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5060, and continue the process.

Going ahead to step 12:
5060 divided by 521 is 9 with a remainder of 371.
The next digit of our result is 9. 
Result so far: 82959.2149
Subtract 4689 from 5060 to get 371.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3710, and continue the process.

Going ahead to step 13:
521 can be fit into 3710 7 times, resulting in a remainder of 63.
The next digit of our result is 7. 
Result so far: 82959.21497
Deduct 3647 from 3710 and we're left with 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

On to step 14:
521 goes into 630 1 times with a remainder of 109.
Write down 1 as next digit of the result. 
Result so far: 82959.214971
Subtract 521 from 630 to get 109.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1090, and continue the process.

Let's proceed to step 15:
521 goes into 1090 2 times with a remainder of 48.
Write down 2 as next digit of the result. 
Result so far: 82959.2149712
If we subtract 1042 from 1090, we get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Advancing to step 16:
480 divided by 521 is 0 with a remainder of 480.
Put 0 as the next digit of the answer. 
Result so far: 82959.2149712
Subtracting 0 from 480 leaves us with 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

In conclusion, the division gives 82959.2149712 with a balance of 4.8e-07.