8155784 ÷ 520 
We're looking to find how many times 520 goes into 8155784.

On to step 1:
If we divide 8 by 520, we get 0 and a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Append the next digit (1) from the dividend to 8 and continue with: 81 / 520

Going ahead to step 2:
When dividing 81 by 520, we get 0 with a remainder of 81.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 81 after subtracting 0 from 81.
Append the next digit (5) from the dividend to 81 and continue with: 815 / 520

Advancing to step 3:
815 divided by 520 is 1 with a remainder of 295.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we subtract 520 from 815, we get 295.
Take the next digit (5) from the dividend and append it to 295, then repeat: 2955 / 520

Step 4:
2955 divided by 520 is 5 with a remainder of 355.
Record the quotient 5 as the next digit in the result. 
Result so far: 15.0
Subtracting 2600 from 2955 leaves us with 355.
Grab the next digit (7) from the dividend, add it to 355, then carry on: 3557 / 520

Let's proceed to step 5:
If we divide 3557 by 520, we get 6 and a remainder of 437.
Record the quotient 6 as the next digit in the result. 
Result so far: 156.0
The remainder is 437 after subtracting 3120 from 3557.
Include the next digit (8) from the dividend after 437, then repeat: 4378 / 520

On to step 6:
If we divide 4378 by 520, we get 8 and a remainder of 218.
Put 8 as the next digit of the answer. 
Result so far: 1568.0
The remainder is 218 after subtracting 4160 from 4378.
Include the next digit (4) from the dividend after 218, then repeat: 2184 / 520

On to step 7:
The number 520 fits into 2184 4 times, leaving a remainder of 104.
The next digit of our result is 4. 
Result so far: 15684.0
If we take 2080 away from 2184, we end up with 104.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

On to step 8:
The number 520 fits into 1040 2 times, leaving a remainder of 0.
Record the quotient 2 as the next digit in the result. 
Result so far: 15684.2
Deduct 1040 from 1040 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 9:
The number 520 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 15684.2
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 10:
520 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 15684.2
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

In conclusion, the division gives 15684.2 with a balance of 0.0.