878424 ÷ 66 
We're looking to find how many times 66 goes into 878424.

Let's proceed to step 1:
If we divide 8 by 66, we get 0 and a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Include the next digit (7) from the dividend after 8, then repeat: 87 / 66

Step 2:
66 can be fit into 87 1 times, resulting in a remainder of 21.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 21 after subtracting 66 from 87.
Grab the next digit (8) from the dividend, add it to 21, then carry on: 218 / 66

Advancing to step 3:
66 can be fit into 218 3 times, resulting in a remainder of 20.
Record the quotient 3 as the next digit in the result. 
Result so far: 13.0
The remainder is 20 after subtracting 198 from 218.
Include the next digit (4) from the dividend after 20, then repeat: 204 / 66

Step 4:
204 divided by 66 is 3 with a remainder of 6.
Write down 3 as next digit of the result. 
Result so far: 133.0
If we subtract 198 from 204, we get 6.
Include the next digit (2) from the dividend after 6, then repeat: 62 / 66

Going ahead to step 5:
66 goes into 62 0 times with a remainder of 62.
The next digit of our result is 0. 
Result so far: 1330.0
Subtract 0 from 62 to get 62.
Grab the next digit (4) from the dividend, add it to 62, then carry on: 624 / 66

Going ahead to step 6:
The number 66 fits into 624 9 times, leaving a remainder of 30.
Write down 9 as next digit of the result. 
Result so far: 13309.0
Subtract 594 from 624 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.

Moving on to step 7:
300 divided by 66 is 4 with a remainder of 36.
The next digit of our result is 4. 
Result so far: 13309.4
Deduct 264 from 300 and we're left 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.

Moving on to step 8:
66 can be fit into 360 5 times, resulting in a remainder of 30.
The number 5 becomes the next digit in our result. 
Result so far: 13309.45
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.

Moving on to step 9:
When dividing 300 by 66, we get 4 with a remainder of 36.
Use 4 as the next digit of our solution. 
Result so far: 13309.454
Deduct 264 from 300 and we're left 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 10:
66 goes into 360 5 times with a remainder of 30.
The next digit of our result is 5. 
Result so far: 13309.4545
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:
66 can be fit into 300 4 times, resulting in a remainder of 36.
The number 4 becomes the next digit in our result. 
Result so far: 13309.45454
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.

Let's proceed to step 12:
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: 13309.454545
Subtracting 330 from 360 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.

Moving on to step 13:
The number 66 fits into 300 4 times, leaving a remainder of 36.
The next digit of our result is 4. 
Result so far: 13309.4545454
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:
The number 66 fits into 360 5 times, leaving a remainder of 30.
Put 5 as the next digit of the answer. 
Result so far: 13309.45454545
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.

In conclusion, the division gives 13309.45454545 with a balance of 3e-08.