We're dividing 12888202 by 509 
We're looking to find how many times 509 goes into 12888202.

Going ahead to step 1:
509 goes into 1 0 times with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Take the next digit (2) from the dividend and append it to 1, then repeat: 12 / 509

Going ahead to step 2:
509 can be fit into 12 0 times, resulting in a remainder of 12.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 12, we end up with 12.
Bring next digit (8) of the dividend behind the 12 and repeat the process: 128 / 509

On to step 3:
The number 509 fits into 128 0 times, leaving a remainder of 128.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 128 after subtracting 0 from 128.
Take the next digit (8) from the dividend and append it to 128, then repeat: 1288 / 509

Let's proceed to step 4:
When dividing 1288 by 509, we get 2 with a remainder of 270.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Deduct 1018 from 1288 and we're left with 270.
Fetch the next digit (8) from the dividend, attach it to 270 and continue: 2708 / 509

Moving on to step 5:
509 goes into 2708 5 times with a remainder of 163.
Write down 5 as next digit of the result. 
Result so far: 25.0
Subtracting 2545 from 2708 leaves us with 163.
Grab the next digit (2) from the dividend, add it to 163, then carry on: 1632 / 509

Let's proceed to step 6:
When dividing 1632 by 509, we get 3 with a remainder of 105.
The next digit of our result is 3. 
Result so far: 253.0
The remainder is 105 after subtracting 1527 from 1632.
Take the next digit (0) from the dividend and append it to 105, then repeat: 1050 / 509

Moving on to step 7:
The number 509 fits into 1050 2 times, leaving a remainder of 32.
Put 2 as the next digit of the answer. 
Result so far: 2532.0
Subtracting 1018 from 1050 leaves us with 32.
Take the next digit (2) from the dividend and append it to 32, then repeat: 322 / 509

Going ahead to step 8:
509 can be fit into 322 0 times, resulting in a remainder of 322.
Put 0 as the next digit of the answer. 
Result so far: 25320.0
Subtracting 0 from 322 leaves us with 322.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3220, and continue the process.

On to step 9:
509 goes into 3220 6 times with a remainder of 166.
Record the quotient 6 as the next digit in the result. 
Result so far: 25320.6
Subtracting 3054 from 3220 leaves us with 166.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1660, and continue the process.

Let's proceed to step 10:
1660 divided by 509 is 3 with a remainder of 133.
Write down 3 as next digit of the result. 
Result so far: 25320.63
If we subtract 1527 from 1660, we get 133.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1330, and continue the process.

Going ahead to step 11:
509 can be fit into 1330 2 times, resulting in a remainder of 312.
The number 2 becomes the next digit in our result. 
Result so far: 25320.632
Subtract 1018 from 1330 to get 312.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3120, and continue the process.

Advancing to step 12:
The number 509 fits into 3120 6 times, leaving a remainder of 66.
The next digit of our result is 6. 
Result so far: 25320.6326
If we subtract 3054 from 3120, we get 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Going ahead to step 13:
660 divided by 509 is 1 with a remainder of 151.
Put 1 as the next digit of the answer. 
Result so far: 25320.63261
If we take 509 away from 660, we end up with 151.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1510, and continue the process.

Moving on to step 14:
When dividing 1510 by 509, we get 2 with a remainder of 492.
The number 2 becomes the next digit in our result. 
Result so far: 25320.632612
Deduct 1018 from 1510 and we're left with 492.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4920, and continue the process.

On to step 15:
If we divide 4920 by 509, we get 9 and a remainder of 339.
Record the quotient 9 as the next digit in the result. 
Result so far: 25320.6326129
Subtract 4581 from 4920 to get 339.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3390, and continue the process.

Let's proceed to step 16:
509 goes into 3390 6 times with a remainder of 336.
Write down 6 as next digit of the result. 
Result so far: 25320.63261296
If we take 3054 away from 3390, we end up with 336.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3360, and continue the process.

The final outcome is 25320.63261296, with a leftover of 3.36e-07.