253609 divided by 80 
We want to figure out the number of times 253609 can be divided by 80.

Let's proceed to step 1:
2 divided by 80 is 0 with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Take the next digit (5) from the dividend and append it to 2, then repeat: 25 / 80

Moving on to step 2:
80 can be fit into 25 0 times, resulting in a remainder of 25.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 25 after subtracting 0 from 25.
Bring next digit (3) of the dividend behind the 25 and repeat the process: 253 / 80

Moving on to step 3:
If we divide 253 by 80, we get 3 and a remainder of 13.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Deduct 240 from 253 and we're left with 13.
Take the next digit (6) from the dividend and append it to 13, then repeat: 136 / 80

Advancing to step 4:
80 can be fit into 136 1 times, resulting in a remainder of 56.
Put 1 as the next digit of the answer. 
Result so far: 31.0
Subtracting 80 from 136 leaves us with 56.
Bring next digit (0) of the dividend behind the 56 and repeat the process: 560 / 80

Going ahead to step 5:
560 divided by 80 is 7 with a remainder of 0.
Write down 7 as next digit of the result. 
Result so far: 317.0
If we take 560 away from 560, we end up with 0.
Take the next digit (9) from the dividend and append it to 0, then repeat: 9 / 80

Moving on to step 6:
9 divided by 80 is 0 with a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 3170.0
The remainder is 9 after subtracting 0 from 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Step 7:
The number 80 fits into 90 1 times, leaving a remainder of 10.
The next digit of our result is 1. 
Result so far: 3170.1
Deduct 80 from 90 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 8:
80 can be fit into 100 1 times, resulting in a remainder of 20.
Record the quotient 1 as the next digit in the result. 
Result so far: 3170.11
The remainder is 20 after subtracting 80 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

The quotient of the division is 3170.11, and the remainder is 0.02.