We're dividing 378455 by 70 
We're looking to find how many times 70 goes into 378455.

Step 1:
70 goes into 3 0 times with a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Append the next digit (7) from the dividend to 3 and continue with: 37 / 70

Going ahead to step 2:
70 can be fit into 37 0 times, resulting in a remainder of 37.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 37 leaves us with 37.
Take the next digit (8) from the dividend and append it to 37, then repeat: 378 / 70

Let's proceed to step 3:
If we divide 378 by 70, we get 5 and a remainder of 28.
Write down 5 as next digit of the result. 
Result so far: 5.0
If we take 350 away from 378, we end up with 28.
Take the next digit (4) from the dividend and append it to 28, then repeat: 284 / 70

Let's proceed to step 4:
70 can be fit into 284 4 times, resulting in a remainder of 4.
Record the quotient 4 as the next digit in the result. 
Result so far: 54.0
If we take 280 away from 284, we end up with 4.
Grab the next digit (5) from the dividend, add it to 4, then carry on: 45 / 70

Moving on to step 5:
The number 70 fits into 45 0 times, leaving a remainder of 45.
The number 0 becomes the next digit in our result. 
Result so far: 540.0
Subtract 0 from 45 to get 45.
Append the next digit (5) from the dividend to 45 and continue with: 455 / 70

Moving on to step 6:
If we divide 455 by 70, we get 6 and a remainder of 35.
Record the quotient 6 as the next digit in the result. 
Result so far: 5406.0
Deduct 420 from 455 and we're left with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Moving on to step 7:
70 goes into 350 5 times with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 5406.5
Subtract 350 from 350 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.

Moving on to step 8:
If we divide 0 by 70, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 5406.5
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.

Moving on to step 9:
The number 70 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 5406.5
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 result is 5406.5 with a remainder of 0.0.