9966812 divided by 378 
We want to figure out the number of times 9966812 can be divided by 378.

Advancing to step 1:
9 divided by 378 is 0 with a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Bring next digit (9) of the dividend behind the 9 and repeat the process: 99 / 378

Advancing to step 2:
378 goes into 99 0 times with a remainder of 99.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 99, we end up with 99.
Append the next digit (6) from the dividend to 99 and continue with: 996 / 378

Moving on to step 3:
If we divide 996 by 378, we get 2 and a remainder of 240.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we take 756 away from 996, we end up with 240.
Fetch the next digit (6) from the dividend, attach it to 240 and continue: 2406 / 378

Moving on to step 4:
When dividing 2406 by 378, we get 6 with a remainder of 138.
Record the quotient 6 as the next digit in the result. 
Result so far: 26.0
If we take 2268 away from 2406, we end up with 138.
Append the next digit (8) from the dividend to 138 and continue with: 1388 / 378

Moving on to step 5:
When dividing 1388 by 378, we get 3 with a remainder of 254.
Use 3 as the next digit of our solution. 
Result so far: 263.0
If we take 1134 away from 1388, we end up with 254.
Bring next digit (1) of the dividend behind the 254 and repeat the process: 2541 / 378

Moving on to step 6:
The number 378 fits into 2541 6 times, leaving a remainder of 273.
The next digit of our result is 6. 
Result so far: 2636.0
Subtracting 2268 from 2541 leaves us with 273.
Take the next digit (2) from the dividend and append it to 273, then repeat: 2732 / 378

Step 7:
If we divide 2732 by 378, we get 7 and a remainder of 86.
The number 7 becomes the next digit in our result. 
Result so far: 26367.0
Deduct 2646 from 2732 and we're left with 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

Going ahead to step 8:
When dividing 860 by 378, we get 2 with a remainder of 104.
The next digit of our result is 2. 
Result so far: 26367.2
If we take 756 away from 860, 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.

Moving on to step 9:
When dividing 1040 by 378, we get 2 with a remainder of 284.
The next digit of our result is 2. 
Result so far: 26367.22
If we take 756 away from 1040, we end up with 284.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2840, and continue the process.

The final outcome is 26367.22, with a leftover of 0.284.