Let's divide 378640 by 16
Our goal is to divide 378640 by 16.

Step 1:
When dividing 3 by 16, we get 0 with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Grab the next digit (7) from the dividend, add it to 3, then carry on: 37 / 16

Moving on to step 2:
If we divide 37 by 16, we get 2 and a remainder of 5.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Subtract 32 from 37 to get 5.
Fetch the next digit (8) from the dividend, attach it to 5 and continue: 58 / 16

Let's proceed to step 3:
58 divided by 16 is 3 with a remainder of 10.
Record the quotient 3 as the next digit in the result. 
Result so far: 23.0
The remainder is 10 after subtracting 48 from 58.
Append the next digit (6) from the dividend to 10 and continue with: 106 / 16

Let's proceed to step 4:
16 can be fit into 106 6 times, resulting in a remainder of 10.
Use 6 as the next digit of our solution. 
Result so far: 236.0
Subtracting 96 from 106 leaves us with 10.
Append the next digit (4) from the dividend to 10 and continue with: 104 / 16

Step 5:
The number 16 fits into 104 6 times, leaving a remainder of 8.
Write down 6 as next digit of the result. 
Result so far: 2366.0
The remainder is 8 after subtracting 96 from 104.
Append the next digit (0) from the dividend to 8 and continue with: 80 / 16

On to step 6:
If we divide 80 by 16, we get 5 and a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 23665.0
Subtract 80 from 80 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 7:
When dividing 0 by 16, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 23665.0
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 8:
0 divided by 16 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 23665.0
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 23665.0, with a leftover of 0.0.