Let's divide 66946012 by 520
Our goal is to divide 66946012 by 520.

Going ahead to step 1:
The number 520 fits into 6 0 times, leaving a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Bring next digit (6) of the dividend behind the 6 and repeat the process: 66 / 520

Going ahead to step 2:
When dividing 66 by 520, we get 0 with a remainder of 66.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 66 leaves us with 66.
Include the next digit (9) from the dividend after 66, then repeat: 669 / 520

Let's proceed to step 3:
520 can be fit into 669 1 times, resulting in a remainder of 149.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 520 from 669 and we're left with 149.
Take the next digit (4) from the dividend and append it to 149, then repeat: 1494 / 520

Step 4:
520 can be fit into 1494 2 times, resulting in a remainder of 454.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
Subtracting 1040 from 1494 leaves us with 454.
Append the next digit (6) from the dividend to 454 and continue with: 4546 / 520

Let's proceed to step 5:
The number 520 fits into 4546 8 times, leaving a remainder of 386.
Write down 8 as next digit of the result. 
Result so far: 128.0
Deduct 4160 from 4546 and we're left with 386.
Take the next digit (0) from the dividend and append it to 386, then repeat: 3860 / 520

Going ahead to step 6:
520 can be fit into 3860 7 times, resulting in a remainder of 220.
Record the quotient 7 as the next digit in the result. 
Result so far: 1287.0
The remainder is 220 after subtracting 3640 from 3860.
Bring next digit (1) of the dividend behind the 220 and repeat the process: 2201 / 520

Moving on to step 7:
520 goes into 2201 4 times with a remainder of 121.
Record the quotient 4 as the next digit in the result. 
Result so far: 12874.0
Subtract 2080 from 2201 to get 121.
Append the next digit (2) from the dividend to 121 and continue with: 1212 / 520

On to step 8:
1212 divided by 520 is 2 with a remainder of 172.
Use 2 as the next digit of our solution. 
Result so far: 128742.0
If we subtract 1040 from 1212, we get 172.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1720, and continue the process.

Step 9:
If we divide 1720 by 520, we get 3 and a remainder of 160.
The next digit of our result is 3. 
Result so far: 128742.3
Subtract 1560 from 1720 to get 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Advancing to step 10:
If we divide 1600 by 520, we get 3 and a remainder of 40.
Put 3 as the next digit of the answer. 
Result so far: 128742.33
Subtracting 1560 from 1600 leaves us 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.

The quotient of the division is 128742.33, and the remainder is 0.04.