We look at the division of 12189312 by 469 
We want to figure out the number of times 12189312 can be divided by 469.

Step 1:
469 goes into 1 0 times with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Take the next digit (2) from the dividend and append it to 1, then repeat: 12 / 469

Moving on to step 2:
469 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 subtract 0 from 12, we get 12.
Take the next digit (1) from the dividend and append it to 12, then repeat: 121 / 469

On to step 3:
If we divide 121 by 469, we get 0 and a remainder of 121.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 121, we get 121.
Include the next digit (8) from the dividend after 121, then repeat: 1218 / 469

Advancing to step 4:
469 goes into 1218 2 times with a remainder of 280.
Use 2 as the next digit of our solution. 
Result so far: 2.0
If we subtract 938 from 1218, we get 280.
Append the next digit (9) from the dividend to 280 and continue with: 2809 / 469

Step 5:
The number 469 fits into 2809 5 times, leaving a remainder of 464.
The number 5 becomes the next digit in our result. 
Result so far: 25.0
The remainder is 464 after subtracting 2345 from 2809.
Fetch the next digit (3) from the dividend, attach it to 464 and continue: 4643 / 469

On to step 6:
If we divide 4643 by 469, we get 9 and a remainder of 422.
Write down 9 as next digit of the result. 
Result so far: 259.0
Subtracting 4221 from 4643 leaves us with 422.
Append the next digit (1) from the dividend to 422 and continue with: 4221 / 469

Step 7:
469 goes into 4221 9 times with a remainder of 0.
Write down 9 as next digit of the result. 
Result so far: 2599.0
Deduct 4221 from 4221 and we're left with 0.
Bring next digit (2) of the dividend behind the 0 and repeat the process: 2 / 469

Advancing to step 8:
If we divide 2 by 469, we get 0 and a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 25990.0
Subtracting 0 from 2 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 9:
The number 469 fits into 20 0 times, leaving a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 25990.0
The remainder is 20 after subtracting 0 from 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 10:
The number 469 fits into 200 0 times, leaving a remainder of 200.
Put 0 as the next digit of the answer. 
Result so far: 25990.0
If we take 0 away from 200, we end up with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

After the division, we end up with 25990.0 and a remainder of 0.2.