We divide 378366 by 45
We're looking to find how many times 45 goes into 378366.

Moving on to step 1:
If we divide 3 by 45, we get 0 and a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Include the next digit (7) from the dividend after 3, then repeat: 37 / 45

Advancing to step 2:
37 divided by 45 is 0 with a remainder of 37.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 37 and we're left with 37.
Include the next digit (8) from the dividend after 37, then repeat: 378 / 45

On to step 3:
45 goes into 378 8 times with a remainder of 18.
Write down 8 as next digit of the result. 
Result so far: 8.0
Subtracting 360 from 378 leaves us with 18.
Include the next digit (3) from the dividend after 18, then repeat: 183 / 45

Step 4:
183 divided by 45 is 4 with a remainder of 3.
Put 4 as the next digit of the answer. 
Result so far: 84.0
Deduct 180 from 183 and we're left with 3.
Grab the next digit (6) from the dividend, add it to 3, then carry on: 36 / 45

Going ahead to step 5:
36 divided by 45 is 0 with a remainder of 36.
The next digit of our result is 0. 
Result so far: 840.0
Subtracting 0 from 36 leaves us with 36.
Take the next digit (6) from the dividend and append it to 36, then repeat: 366 / 45

Moving on to step 6:
45 goes into 366 8 times with a remainder of 6.
Record the quotient 8 as the next digit in the result. 
Result so far: 8408.0
Deduct 360 from 366 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 7:
If we divide 60 by 45, we get 1 and a remainder of 15.
Put 1 as the next digit of the answer. 
Result so far: 8408.1
If we take 45 away from 60, we end up with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Step 8:
When dividing 150 by 45, we get 3 with a remainder of 15.
Put 3 as the next digit of the answer. 
Result so far: 8408.13
The remainder is 15 after subtracting 135 from 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Step 9:
If we divide 150 by 45, we get 3 and a remainder of 15.
The next digit of our result is 3. 
Result so far: 8408.133
If we take 135 away from 150, we end up with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

The quotient of the division is 8408.133, and the remainder is 0.0015.