We're dividing 378789 by 80 
Our goal is to divide 378789 by 80.

Moving on to step 1:
If we divide 3 by 80, we get 0 and a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Include the next digit (7) from the dividend after 3, then repeat: 37 / 80

Going ahead to step 2:
When dividing 37 by 80, we get 0 with a remainder of 37.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 37, we end up with 37.
Bring next digit (8) of the dividend behind the 37 and repeat the process: 378 / 80

Step 3:
If we divide 378 by 80, we get 4 and a remainder of 58.
The next digit of our result is 4. 
Result so far: 4.0
Subtract 320 from 378 to get 58.
Append the next digit (7) from the dividend to 58 and continue with: 587 / 80

On to step 4:
The number 80 fits into 587 7 times, leaving a remainder of 27.
Use 7 as the next digit of our solution. 
Result so far: 47.0
If we take 560 away from 587, we end up with 27.
Grab the next digit (8) from the dividend, add it to 27, then carry on: 278 / 80

Step 5:
80 goes into 278 3 times with a remainder of 38.
Put 3 as the next digit of the answer. 
Result so far: 473.0
If we take 240 away from 278, we end up with 38.
Append the next digit (9) from the dividend to 38 and continue with: 389 / 80

Moving on to step 6:
80 goes into 389 4 times with a remainder of 69.
Use 4 as the next digit of our solution. 
Result so far: 4734.0
Subtracting 320 from 389 leaves us with 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Advancing to step 7:
80 can be fit into 690 8 times, resulting in a remainder of 50.
Record the quotient 8 as the next digit in the result. 
Result so far: 4734.8
Subtract 640 from 690 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

On to step 8:
When dividing 500 by 80, we get 6 with a remainder of 20.
Write down 6 as next digit of the result. 
Result so far: 4734.86
If we subtract 480 from 500, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 9:
200 divided by 80 is 2 with a remainder of 40.
Record the quotient 2 as the next digit in the result. 
Result so far: 4734.862
Subtracting 160 from 200 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 10:
The number 80 fits into 400 5 times, leaving a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 4734.8625
Subtract 400 from 400 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.

Going ahead to step 11:
0 divided by 80 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 4734.8625
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.

Advancing to step 12:
When dividing 0 by 80, we get 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 4734.8625
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.

Our division results in 4734.8625 with a remaining 0.0.