We're dividing 72814021 by 521 
Our goal is to divide 72814021 by 521.

Moving on to step 1:
When dividing 7 by 521, we get 0 with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Take the next digit (2) from the dividend and append it to 7, then repeat: 72 / 521

Moving on to step 2:
72 divided by 521 is 0 with a remainder of 72.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 72 to get 72.
Bring next digit (8) of the dividend behind the 72 and repeat the process: 728 / 521

On to step 3:
The number 521 fits into 728 1 times, leaving a remainder of 207.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 207 after subtracting 521 from 728.
Take the next digit (1) from the dividend and append it to 207, then repeat: 2071 / 521

Step 4:
The number 521 fits into 2071 3 times, leaving a remainder of 508.
Put 3 as the next digit of the answer. 
Result so far: 13.0
If we take 1563 away from 2071, we end up with 508.
Bring next digit (4) of the dividend behind the 508 and repeat the process: 5084 / 521

On to step 5:
521 goes into 5084 9 times with a remainder of 395.
The number 9 becomes the next digit in our result. 
Result so far: 139.0
Deduct 4689 from 5084 and we're left with 395.
Append the next digit (0) from the dividend to 395 and continue with: 3950 / 521

Advancing to step 6:
When dividing 3950 by 521, we get 7 with a remainder of 303.
The next digit of our result is 7. 
Result so far: 1397.0
Subtract 3647 from 3950 to get 303.
Bring next digit (2) of the dividend behind the 303 and repeat the process: 3032 / 521

Step 7:
3032 divided by 521 is 5 with a remainder of 427.
Use 5 as the next digit of our solution. 
Result so far: 13975.0
If we take 2605 away from 3032, we end up with 427.
Grab the next digit (1) from the dividend, add it to 427, then carry on: 4271 / 521

Let's proceed to step 8:
The number 521 fits into 4271 8 times, leaving a remainder of 103.
Record the quotient 8 as the next digit in the result. 
Result so far: 139758.0
If we subtract 4168 from 4271, we get 103.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1030, and continue the process.

Advancing to step 9:
The number 521 fits into 1030 1 times, leaving a remainder of 509.
The number 1 becomes the next digit in our result. 
Result so far: 139758.1
Subtracting 521 from 1030 leaves us with 509.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5090, and continue the process.

On to step 10:
521 goes into 5090 9 times with a remainder of 401.
The number 9 becomes the next digit in our result. 
Result so far: 139758.19
Subtract 4689 from 5090 to get 401.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4010, and continue the process.

Going ahead to step 11:
4010 divided by 521 is 7 with a remainder of 363.
Put 7 as the next digit of the answer. 
Result so far: 139758.197
The remainder is 363 after subtracting 3647 from 4010.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3630, and continue the process.

Step 12:
When dividing 3630 by 521, we get 6 with a remainder of 504.
The number 6 becomes the next digit in our result. 
Result so far: 139758.1976
The remainder is 504 after subtracting 3126 from 3630.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5040, and continue the process.

Advancing to step 13:
5040 divided by 521 is 9 with a remainder of 351.
The next digit of our result is 9. 
Result so far: 139758.19769
Deduct 4689 from 5040 and we're left with 351.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3510, and continue the process.

Advancing to step 14:
The number 521 fits into 3510 6 times, leaving a remainder of 384.
Use 6 as the next digit of our solution. 
Result so far: 139758.197696
The remainder is 384 after subtracting 3126 from 3510.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3840, and continue the process.

Going ahead to step 15:
When dividing 3840 by 521, we get 7 with a remainder of 193.
The number 7 becomes the next digit in our result. 
Result so far: 139758.1976967
If we subtract 3647 from 3840, we get 193.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1930, and continue the process.

Step 16:
521 goes into 1930 3 times with a remainder of 367.
The next digit of our result is 3. 
Result so far: 139758.19769673
Subtracting 1563 from 1930 leaves us with 367.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3670, and continue the process.

The quotient of the division is 139758.19769673, and the remainder is 3.67e-07.