22566309 divided by 12 
We're looking to find how many times 12 goes into 22566309.

Step 1:
If we divide 2 by 12, we get 0 and 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.
Fetch the next digit (2) from the dividend, attach it to 2 and continue: 22 / 12

Going ahead to step 2:
12 can be fit into 22 1 times, resulting in a remainder of 10.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 12 from 22 leaves us with 10.
Take the next digit (5) from the dividend and append it to 10, then repeat: 105 / 12

Step 3:
If we divide 105 by 12, we get 8 and a remainder of 9.
Put 8 as the next digit of the answer. 
Result so far: 18.0
Subtract 96 from 105 to get 9.
Fetch the next digit (6) from the dividend, attach it to 9 and continue: 96 / 12

Let's proceed to step 4:
12 can be fit into 96 8 times, resulting in a remainder of 0.
The next digit of our result is 8. 
Result so far: 188.0
Subtracting 96 from 96 leaves us with 0.
Fetch the next digit (6) from the dividend, attach it to 0 and continue: 6 / 12

Moving on to step 5:
12 goes into 6 0 times with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 1880.0
If we take 0 away from 6, we end up with 6.
Include the next digit (3) from the dividend after 6, then repeat: 63 / 12

Let's proceed to step 6:
The number 12 fits into 63 5 times, leaving a remainder of 3.
Put 5 as the next digit of the answer. 
Result so far: 18805.0
If we take 60 away from 63, we end up with 3.
Grab the next digit (0) from the dividend, add it to 3, then carry on: 30 / 12

Going ahead to step 7:
If we divide 30 by 12, we get 2 and a remainder of 6.
Write down 2 as next digit of the result. 
Result so far: 188052.0
The remainder is 6 after subtracting 24 from 30.
Take the next digit (9) from the dividend and append it to 6, then repeat: 69 / 12

Let's proceed to step 8:
The number 12 fits into 69 5 times, leaving a remainder of 9.
Use 5 as the next digit of our solution. 
Result so far: 1880525.0
Deduct 60 from 69 and we're left with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Let's proceed to step 9:
90 divided by 12 is 7 with a remainder of 6.
The next digit of our result is 7. 
Result so far: 1880525.7
The remainder is 6 after subtracting 84 from 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 10:
60 divided by 12 is 5 with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 1880525.75
Subtract 60 from 60 to 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.

Step 11:
0 divided by 12 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 1880525.75
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.

On to step 12:
When dividing 0 by 12, we get 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 1880525.75
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.

The final outcome is 1880525.75, with a leftover of 0.0.