231569 ÷ 80 
We want to divide 231569 by 80.

Step 1:
If we divide 2 by 80, we get 0 and a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Bring next digit (3) of the dividend behind the 2 and repeat the process: 23 / 80

Advancing to step 2:
If we divide 23 by 80, we get 0 and a remainder of 23.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 23, we end up with 23.
Take the next digit (1) from the dividend and append it to 23, then repeat: 231 / 80

Advancing to step 3:
The number 80 fits into 231 2 times, leaving a remainder of 71.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we take 160 away from 231, we end up with 71.
Take the next digit (5) from the dividend and append it to 71, then repeat: 715 / 80

Going ahead to step 4:
If we divide 715 by 80, we get 8 and a remainder of 75.
Use 8 as the next digit of our solution. 
Result so far: 28.0
Deduct 640 from 715 and we're left with 75.
Bring next digit (6) of the dividend behind the 75 and repeat the process: 756 / 80

Moving on to step 5:
756 divided by 80 is 9 with a remainder of 36.
The number 9 becomes the next digit in our result. 
Result so far: 289.0
If we subtract 720 from 756, we get 36.
Take the next digit (9) from the dividend and append it to 36, then repeat: 369 / 80

Step 6:
The number 80 fits into 369 4 times, leaving a remainder of 49.
Record the quotient 4 as the next digit in the result. 
Result so far: 2894.0
Deduct 320 from 369 and we're left with 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Moving on to step 7:
80 goes into 490 6 times with a remainder of 10.
Put 6 as the next digit of the answer. 
Result so far: 2894.6
Subtract 480 from 490 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 8:
The number 80 fits into 100 1 times, leaving a remainder of 20.
Put 1 as the next digit of the answer. 
Result so far: 2894.61
Subtract 80 from 100 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.

Moving on to step 9:
80 goes into 200 2 times with a remainder of 40.
Record the quotient 2 as the next digit in the result. 
Result so far: 2894.612
If we subtract 160 from 200, we get 40.
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:
If we divide 400 by 80, we get 5 and a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 2894.6125
If we take 400 away from 400, we end up 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 11:
0 divided by 80 is 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 2894.6125
If we take 0 away from 0, we end up 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:
The number 80 fits into 0 0 times, leaving a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 2894.6125
Deduct 0 from 0 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.

Our division results in 2894.6125 with a remaining 0.0.