We divide 78782521 by 66
We want to figure out the number of times 78782521 can be divided by 66.

Step 1:
7 divided by 66 is 0 with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Include the next digit (8) from the dividend after 7, then repeat: 78 / 66

Let's proceed to step 2:
When dividing 78 by 66, we get 1 with a remainder of 12.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 66 from 78 leaves us with 12.
Fetch the next digit (7) from the dividend, attach it to 12 and continue: 127 / 66

Step 3:
127 divided by 66 is 1 with a remainder of 61.
Use 1 as the next digit of our solution. 
Result so far: 11.0
Deduct 66 from 127 and we're left with 61.
Take the next digit (8) from the dividend and append it to 61, then repeat: 618 / 66

Going ahead to step 4:
618 divided by 66 is 9 with a remainder of 24.
The next digit of our result is 9. 
Result so far: 119.0
If we subtract 594 from 618, we get 24.
Include the next digit (2) from the dividend after 24, then repeat: 242 / 66

Let's proceed to step 5:
66 goes into 242 3 times with a remainder of 44.
Put 3 as the next digit of the answer. 
Result so far: 1193.0
If we subtract 198 from 242, we get 44.
Bring next digit (5) of the dividend behind the 44 and repeat the process: 445 / 66

Going ahead to step 6:
If we divide 445 by 66, we get 6 and a remainder of 49.
Put 6 as the next digit of the answer. 
Result so far: 11936.0
Subtract 396 from 445 to get 49.
Bring next digit (2) of the dividend behind the 49 and repeat the process: 492 / 66

Advancing to step 7:
When dividing 492 by 66, we get 7 with a remainder of 30.
The number 7 becomes the next digit in our result. 
Result so far: 119367.0
The remainder is 30 after subtracting 462 from 492.
Bring next digit (1) of the dividend behind the 30 and repeat the process: 301 / 66

Let's proceed to step 8:
301 divided by 66 is 4 with a remainder of 37.
Record the quotient 4 as the next digit in the result. 
Result so far: 1193674.0
The remainder is 37 after subtracting 264 from 301.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Step 9:
If we divide 370 by 66, we get 5 and a remainder of 40.
Record the quotient 5 as the next digit in the result. 
Result so far: 1193674.5
Subtracting 330 from 370 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.

Going ahead to step 10:
The number 66 fits into 400 6 times, leaving a remainder of 4.
The number 6 becomes the next digit in our result. 
Result so far: 1193674.56
Subtract 396 from 400 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 11:
40 divided by 66 is 0 with a remainder of 40.
Put 0 as the next digit of the answer. 
Result so far: 1193674.56
The remainder is 40 after subtracting 0 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 12:
When dividing 400 by 66, we get 6 with a remainder of 4.
Write down 6 as next digit of the result. 
Result so far: 1193674.5606
Subtracting 396 from 400 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 13:
When dividing 40 by 66, we get 0 with a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 1193674.5606
Subtract 0 from 40 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 14:
66 goes into 400 6 times with a remainder of 4.
Put 6 as the next digit of the answer. 
Result so far: 1193674.560606
Subtract 396 from 400 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 15:
66 can be fit into 40 0 times, resulting in a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 1193674.560606
If we take 0 away from 40, 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.

Let's proceed to step 16:
66 goes into 400 6 times with a remainder of 4.
Put 6 as the next digit of the answer. 
Result so far: 1193674.56060606
Deduct 396 from 400 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

The final result is 1193674.56060606 with a remainder of 4e-09.