We're dividing 378448 by 7 
We want to figure out the number of times 378448 can be divided by 7.

Step 1:
7 can be fit into 3 0 times, resulting in a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Include the next digit (7) from the dividend after 3, then repeat: 37 / 7

On to step 2:
The number 7 fits into 37 5 times, leaving a remainder of 2.
The next digit of our result is 5. 
Result so far: 5.0
Subtract 35 from 37 to get 2.
Take the next digit (8) from the dividend and append it to 2, then repeat: 28 / 7

Advancing to step 3:
The number 7 fits into 28 4 times, leaving a remainder of 0.
The next digit of our result is 4. 
Result so far: 54.0
If we subtract 28 from 28, we get 0.
Bring next digit (4) of the dividend behind the 0 and repeat the process: 4 / 7

Moving on to step 4:
When dividing 4 by 7, we get 0 with a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 540.0
Deduct 0 from 4 and we're left with 4.
Include the next digit (4) from the dividend after 4, then repeat: 44 / 7

Let's proceed to step 5:
If we divide 44 by 7, we get 6 and a remainder of 2.
Record the quotient 6 as the next digit in the result. 
Result so far: 5406.0
Deduct 42 from 44 and we're left with 2.
Bring next digit (8) of the dividend behind the 2 and repeat the process: 28 / 7

On to step 6:
7 can be fit into 28 4 times, resulting in a remainder of 0.
The next digit of our result is 4. 
Result so far: 54064.0
Deduct 28 from 28 and we're left 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.

Let's proceed to step 7:
7 can be fit into 0 0 times, resulting in a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 54064.0
If we subtract 0 from 0, we 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:
If we divide 0 by 7, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 54064.0
If we subtract 0 from 0, we 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.

The quotient of the division is 54064.0, and the remainder is 0.0.