We divide 520374 by 66
We want to figure out the number of times 520374 can be divided by 66.

On to step 1:
66 can be fit into 5 0 times, resulting in a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Include the next digit (2) from the dividend after 5, then repeat: 52 / 66

Going ahead to step 2:
52 divided by 66 is 0 with a remainder of 52.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 52, we end up with 52.
Include the next digit (0) from the dividend after 52, then repeat: 520 / 66

Going ahead to step 3:
When dividing 520 by 66, we get 7 with a remainder of 58.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
Subtracting 462 from 520 leaves us with 58.
Append the next digit (3) from the dividend to 58 and continue with: 583 / 66

On to step 4:
66 goes into 583 8 times with a remainder of 55.
The next digit of our result is 8. 
Result so far: 78.0
If we take 528 away from 583, we end up with 55.
Bring next digit (7) of the dividend behind the 55 and repeat the process: 557 / 66

Advancing to step 5:
When dividing 557 by 66, we get 8 with a remainder of 29.
Put 8 as the next digit of the answer. 
Result so far: 788.0
The remainder is 29 after subtracting 528 from 557.
Bring next digit (4) of the dividend behind the 29 and repeat the process: 294 / 66

Let's proceed to step 6:
If we divide 294 by 66, we get 4 and a remainder of 30.
Record the quotient 4 as the next digit in the result. 
Result so far: 7884.0
Subtracting 264 from 294 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 7:
The number 66 fits into 300 4 times, leaving a remainder of 36.
Use 4 as the next digit of our solution. 
Result so far: 7884.4
If we take 264 away from 300, we end up with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

On to step 8:
The number 66 fits into 360 5 times, leaving a remainder of 30.
Use 5 as the next digit of our solution. 
Result so far: 7884.45
Deduct 330 from 360 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 9:
The number 66 fits into 300 4 times, leaving a remainder of 36.
The next digit of our result is 4. 
Result so far: 7884.454
The remainder is 36 after subtracting 264 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Advancing to step 10:
If we divide 360 by 66, we get 5 and a remainder of 30.
The number 5 becomes the next digit in our result. 
Result so far: 7884.4545
Subtract 330 from 360 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 11:
When dividing 300 by 66, we get 4 with a remainder of 36.
Write down 4 as next digit of the result. 
Result so far: 7884.45454
If we subtract 264 from 300, we get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Going ahead to step 12:
66 can be fit into 360 5 times, resulting in a remainder of 30.
The next digit of our result is 5. 
Result so far: 7884.454545
If we subtract 330 from 360, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 13:
If we divide 300 by 66, we get 4 and a remainder of 36.
The number 4 becomes the next digit in our result. 
Result so far: 7884.4545454
The remainder is 36 after subtracting 264 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Step 14:
66 can be fit into 360 5 times, resulting in a remainder of 30.
Put 5 as the next digit of the answer. 
Result so far: 7884.45454545
Deduct 330 from 360 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

The final outcome is 7884.45454545, with a leftover of 3e-08.