We're dividing 17017604 by 378 
Let's see how many times 378 fits into 17017604.

Let's proceed to step 1:
If we divide 1 by 378, we get 0 and a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Bring next digit (7) of the dividend behind the 1 and repeat the process: 17 / 378

Advancing to step 2:
If we divide 17 by 378, we get 0 and a remainder of 17.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 17 after subtracting 0 from 17.
Fetch the next digit (0) from the dividend, attach it to 17 and continue: 170 / 378

Let's proceed to step 3:
When dividing 170 by 378, we get 0 with a remainder of 170.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 170, we get 170.
Take the next digit (1) from the dividend and append it to 170, then repeat: 1701 / 378

On to step 4:
The number 378 fits into 1701 4 times, leaving a remainder of 189.
Use 4 as the next digit of our solution. 
Result so far: 4.0
If we take 1512 away from 1701, we end up with 189.
Grab the next digit (7) from the dividend, add it to 189, then carry on: 1897 / 378

Let's proceed to step 5:
If we divide 1897 by 378, we get 5 and a remainder of 7.
The next digit of our result is 5. 
Result so far: 45.0
Subtracting 1890 from 1897 leaves us with 7.
Include the next digit (6) from the dividend after 7, then repeat: 76 / 378

Let's proceed to step 6:
76 divided by 378 is 0 with a remainder of 76.
Write down 0 as next digit of the result. 
Result so far: 450.0
Subtracting 0 from 76 leaves us with 76.
Append the next digit (0) from the dividend to 76 and continue with: 760 / 378

Going ahead to step 7:
760 divided by 378 is 2 with a remainder of 4.
The number 2 becomes the next digit in our result. 
Result so far: 4502.0
The remainder is 4 after subtracting 756 from 760.
Append the next digit (4) from the dividend to 4 and continue with: 44 / 378

Step 8:
44 divided by 378 is 0 with a remainder of 44.
Record the quotient 0 as the next digit in the result. 
Result so far: 45020.0
Deduct 0 from 44 and we're left with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Let's proceed to step 9:
When dividing 440 by 378, we get 1 with a remainder of 62.
Put 1 as the next digit of the answer. 
Result so far: 45020.1
If we take 378 away from 440, we end up with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Step 10:
When dividing 620 by 378, we get 1 with a remainder of 242.
Put 1 as the next digit of the answer. 
Result so far: 45020.11
If we take 378 away from 620, we end up with 242.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2420, and continue the process.

After the division, we end up with 45020.11 and a remainder of 0.242.