378512 ÷ 10 
We want to divide 378512 by 10.

On to step 1:
10 goes into 3 0 times with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Bring next digit (7) of the dividend behind the 3 and repeat the process: 37 / 10

Step 2:
When dividing 37 by 10, we get 3 with a remainder of 7.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
If we subtract 30 from 37, we get 7.
Include the next digit (8) from the dividend after 7, then repeat: 78 / 10

Step 3:
10 goes into 78 7 times with a remainder of 8.
The next digit of our result is 7. 
Result so far: 37.0
If we subtract 70 from 78, we get 8.
Bring next digit (5) of the dividend behind the 8 and repeat the process: 85 / 10

Let's proceed to step 4:
When dividing 85 by 10, we get 8 with a remainder of 5.
Put 8 as the next digit of the answer. 
Result so far: 378.0
Subtract 80 from 85 to get 5.
Append the next digit (1) from the dividend to 5 and continue with: 51 / 10

Moving on to step 5:
When dividing 51 by 10, we get 5 with a remainder of 1.
Put 5 as the next digit of the answer. 
Result so far: 3785.0
The remainder is 1 after subtracting 50 from 51.
Fetch the next digit (2) from the dividend, attach it to 1 and continue: 12 / 10

On to step 6:
10 goes into 12 1 times with a remainder of 2.
Record the quotient 1 as the next digit in the result. 
Result so far: 37851.0
Deduct 10 from 12 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 7:
If we divide 20 by 10, we get 2 and a remainder of 0.
Record the quotient 2 as the next digit in the result. 
Result so far: 37851.2
If we take 20 away from 20, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 8:
When dividing 0 by 10, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 37851.2
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 9:
0 divided by 10 is 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 37851.2
Subtracting 0 from 0 leaves us with 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 37851.2, with a leftover of 0.0.