We divide 12489379 by 456
We want to figure out the number of times 12489379 can be divided by 456.

Step 1:
When dividing 1 by 456, we get 0 with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Include the next digit (2) from the dividend after 1, then repeat: 12 / 456

Let's proceed to step 2:
When dividing 12 by 456, we get 0 with a remainder of 12.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 12, we end up with 12.
Bring next digit (4) of the dividend behind the 12 and repeat the process: 124 / 456

Step 3:
124 divided by 456 is 0 with a remainder of 124.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 124 to get 124.
Take the next digit (8) from the dividend and append it to 124, then repeat: 1248 / 456

Let's proceed to step 4:
If we divide 1248 by 456, we get 2 and a remainder of 336.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
If we take 912 away from 1248, we end up with 336.
Append the next digit (9) from the dividend to 336 and continue with: 3369 / 456

On to step 5:
When dividing 3369 by 456, we get 7 with a remainder of 177.
Write down 7 as next digit of the result. 
Result so far: 27.0
If we subtract 3192 from 3369, we get 177.
Include the next digit (3) from the dividend after 177, then repeat: 1773 / 456

Let's proceed to step 6:
When dividing 1773 by 456, we get 3 with a remainder of 405.
The next digit of our result is 3. 
Result so far: 273.0
Subtracting 1368 from 1773 leaves us with 405.
Fetch the next digit (7) from the dividend, attach it to 405 and continue: 4057 / 456

Let's proceed to step 7:
If we divide 4057 by 456, we get 8 and a remainder of 409.
Write down 8 as next digit of the result. 
Result so far: 2738.0
Subtract 3648 from 4057 to get 409.
Fetch the next digit (9) from the dividend, attach it to 409 and continue: 4099 / 456

Moving on to step 8:
The number 456 fits into 4099 8 times, leaving a remainder of 451.
Write down 8 as next digit of the result. 
Result so far: 27388.0
If we subtract 3648 from 4099, we get 451.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4510, and continue the process.

Advancing to step 9:
456 can be fit into 4510 9 times, resulting in a remainder of 406.
Record the quotient 9 as the next digit in the result. 
Result so far: 27388.9
The remainder is 406 after subtracting 4104 from 4510.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4060, and continue the process.

Let's proceed to step 10:
456 can be fit into 4060 8 times, resulting in a remainder of 412.
Put 8 as the next digit of the answer. 
Result so far: 27388.98
Subtract 3648 from 4060 to get 412.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4120, and continue the process.

Advancing to step 11:
If we divide 4120 by 456, we get 9 and a remainder of 16.
Use 9 as the next digit of our solution. 
Result so far: 27388.989
Deduct 4104 from 4120 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 12:
When dividing 160 by 456, we get 0 with a remainder of 160.
Put 0 as the next digit of the answer. 
Result so far: 27388.989
Subtracting 0 from 160 leaves us with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Going ahead to step 13:
The number 456 fits into 1600 3 times, leaving a remainder of 232.
Put 3 as the next digit of the answer. 
Result so far: 27388.98903
Subtracting 1368 from 1600 leaves us with 232.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2320, and continue the process.

Moving on to step 14:
456 goes into 2320 5 times with a remainder of 40.
Record the quotient 5 as the next digit in the result. 
Result so far: 27388.989035
Subtract 2280 from 2320 to 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.

Let's proceed to step 15:
456 can be fit into 400 0 times, resulting in a remainder of 400.
Put 0 as the next digit of the answer. 
Result so far: 27388.989035
If we take 0 away from 400, we end up with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

On to step 16:
If we divide 4000 by 456, we get 8 and a remainder of 352.
Write down 8 as next digit of the result. 
Result so far: 27388.98903508
The remainder is 352 after subtracting 3648 from 4000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3520, and continue the process.

The final result is 27388.98903508 with a remainder of 3.52e-07.