378523 divided by 80 
Let's see how many times 80 fits into 378523.

Moving on to step 1:
80 can be fit into 3 0 times, resulting in 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.
Fetch the next digit (7) from the dividend, attach it to 3 and continue: 37 / 80

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
The remainder is 37 after subtracting 0 from 37.
Include the next digit (8) from the dividend after 37, then repeat: 378 / 80

Let's proceed to step 3:
The number 80 fits into 378 4 times, leaving a remainder of 58.
Put 4 as the next digit of the answer. 
Result so far: 4.0
The remainder is 58 after subtracting 320 from 378.
Append the next digit (5) from the dividend to 58 and continue with: 585 / 80

Advancing to step 4:
80 goes into 585 7 times with a remainder of 25.
Use 7 as the next digit of our solution. 
Result so far: 47.0
If we subtract 560 from 585, we get 25.
Append the next digit (2) from the dividend to 25 and continue with: 252 / 80

Moving on to step 5:
80 goes into 252 3 times with a remainder of 12.
Write down 3 as next digit of the result. 
Result so far: 473.0
Subtract 240 from 252 to get 12.
Fetch the next digit (3) from the dividend, attach it to 12 and continue: 123 / 80

Let's proceed to step 6:
80 goes into 123 1 times with a remainder of 43.
Write down 1 as next digit of the result. 
Result so far: 4731.0
Deduct 80 from 123 and we're left with 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Advancing to step 7:
80 goes into 430 5 times with a remainder of 30.
Record the quotient 5 as the next digit in the result. 
Result so far: 4731.5
If we take 400 away from 430, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 8:
80 goes into 300 3 times with a remainder of 60.
The next digit of our result is 3. 
Result so far: 4731.53
If we take 240 away from 300, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 9:
When dividing 600 by 80, we get 7 with a remainder of 40.
Write down 7 as next digit of the result. 
Result so far: 4731.537
The remainder is 40 after subtracting 560 from 600.
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:
If we divide 400 by 80, we get 5 and a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 4731.5375
Deduct 400 from 400 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.

Step 11:
0 divided by 80 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 4731.5375
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.

Let's proceed to step 12:
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: 4731.5375
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 4731.5375, and the remainder is 0.0.