We're dividing 74279872 by 520 
Our goal is to divide 74279872 by 520.

On to step 1:
7 divided by 520 is 0 with a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Bring next digit (4) of the dividend behind the 7 and repeat the process: 74 / 520

Step 2:
520 can be fit into 74 0 times, resulting in a remainder of 74.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 74 after subtracting 0 from 74.
Include the next digit (2) from the dividend after 74, then repeat: 742 / 520

Step 3:
The number 520 fits into 742 1 times, leaving a remainder of 222.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
The remainder is 222 after subtracting 520 from 742.
Append the next digit (7) from the dividend to 222 and continue with: 2227 / 520

On to step 4:
520 goes into 2227 4 times with a remainder of 147.
The number 4 becomes the next digit in our result. 
Result so far: 14.0
If we subtract 2080 from 2227, we get 147.
Bring next digit (9) of the dividend behind the 147 and repeat the process: 1479 / 520

On to step 5:
520 goes into 1479 2 times with a remainder of 439.
Put 2 as the next digit of the answer. 
Result so far: 142.0
Subtract 1040 from 1479 to get 439.
Bring next digit (8) of the dividend behind the 439 and repeat the process: 4398 / 520

Going ahead to step 6:
If we divide 4398 by 520, we get 8 and a remainder of 238.
Put 8 as the next digit of the answer. 
Result so far: 1428.0
If we take 4160 away from 4398, we end up with 238.
Bring next digit (7) of the dividend behind the 238 and repeat the process: 2387 / 520

On to step 7:
2387 divided by 520 is 4 with a remainder of 307.
The number 4 becomes the next digit in our result. 
Result so far: 14284.0
Subtracting 2080 from 2387 leaves us with 307.
Take the next digit (2) from the dividend and append it to 307, then repeat: 3072 / 520

Advancing to step 8:
When dividing 3072 by 520, we get 5 with a remainder of 472.
Put 5 as the next digit of the answer. 
Result so far: 142845.0
If we take 2600 away from 3072, we end up with 472.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4720, and continue the process.

On to step 9:
4720 divided by 520 is 9 with a remainder of 40.
Put 9 as the next digit of the answer. 
Result so far: 142845.9
If we take 4680 away from 4720, we end up with 40.
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 10:
520 goes into 400 0 times with a remainder of 400.
Use 0 as the next digit of our solution. 
Result so far: 142845.9
Subtract 0 from 400 to get 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Going ahead to step 11:
520 can be fit into 4000 7 times, resulting in a remainder of 360.
The number 7 becomes the next digit in our result. 
Result so far: 142845.907
Subtract 3640 from 4000 to get 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Step 12:
3600 divided by 520 is 6 with a remainder of 480.
Put 6 as the next digit of the answer. 
Result so far: 142845.9076
If we subtract 3120 from 3600, we get 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

On to step 13:
If we divide 4800 by 520, we get 9 and a remainder of 120.
Record the quotient 9 as the next digit in the result. 
Result so far: 142845.90769
The remainder is 120 after subtracting 4680 from 4800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Let's proceed to step 14:
If we divide 1200 by 520, we get 2 and a remainder of 160.
Record the quotient 2 as the next digit in the result. 
Result so far: 142845.907692
Deduct 1040 from 1200 and we're left with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Moving on to step 15:
1600 divided by 520 is 3 with a remainder of 40.
Record the quotient 3 as the next digit in the result. 
Result so far: 142845.9076923
Deduct 1560 from 1600 and we're left with 40.
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 16:
520 can be fit into 400 0 times, resulting in a remainder of 400.
The next digit of our result is 0. 
Result so far: 142845.9076923
If we take 0 away from 400, we end up with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

In conclusion, the division gives 142845.9076923 with a balance of 4e-07.