364389 ÷ 80 
We want to figure out the number of times 364389 can be divided by 80.

Step 1:
If we divide 3 by 80, we get 0 and a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Fetch the next digit (6) from the dividend, attach it to 3 and continue: 36 / 80

Moving on to step 2:
80 goes into 36 0 times with a remainder of 36.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 36, we get 36.
Grab the next digit (4) from the dividend, add it to 36, then carry on: 364 / 80

On to step 3:
80 goes into 364 4 times with a remainder of 44.
The next digit of our result is 4. 
Result so far: 4.0
Deduct 320 from 364 and we're left with 44.
Take the next digit (3) from the dividend and append it to 44, then repeat: 443 / 80

Moving on to step 4:
80 goes into 443 5 times with a remainder of 43.
Write down 5 as next digit of the result. 
Result so far: 45.0
Subtracting 400 from 443 leaves us with 43.
Include the next digit (8) from the dividend after 43, then repeat: 438 / 80

Let's proceed to step 5:
The number 80 fits into 438 5 times, leaving a remainder of 38.
The next digit of our result is 5. 
Result so far: 455.0
The remainder is 38 after subtracting 400 from 438.
Include the next digit (9) from the dividend after 38, then repeat: 389 / 80

Step 6:
389 divided by 80 is 4 with a remainder of 69.
Use 4 as the next digit of our solution. 
Result so far: 4554.0
If we subtract 320 from 389, we get 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Step 7:
80 goes into 690 8 times with a remainder of 50.
Write down 8 as next digit of the result. 
Result so far: 4554.8
If we subtract 640 from 690, we 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.

Advancing to step 8:
80 can be fit into 500 6 times, resulting in a remainder of 20.
Write down 6 as next digit of the result. 
Result so far: 4554.86
Subtract 480 from 500 to 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.

Going ahead to step 9:
The number 80 fits into 200 2 times, leaving a remainder of 40.
Record the quotient 2 as the next digit in the result. 
Result so far: 4554.862
The remainder is 40 after subtracting 160 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 10:
80 can be fit into 400 5 times, resulting in a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 4554.8625
If we subtract 400 from 400, 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 11:
80 can be fit into 0 0 times, resulting in a remainder of 0.
The next digit of our result is 0. 
Result so far: 4554.8625
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.

Let's proceed to step 12:
80 goes into 0 0 times with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 4554.8625
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.

Our division results in 4554.8625 with a remaining 0.0.