Let's divide 12159880 by 487
Let's see how many times 487 fits into 12159880.

Going ahead to step 1:
The number 487 fits into 1 0 times, leaving a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Grab the next digit (2) from the dividend, add it to 1, then carry on: 12 / 487

Going ahead to step 2:
If we divide 12 by 487, we get 0 and 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.
Grab the next digit (1) from the dividend, add it to 12, then carry on: 121 / 487

Let's proceed to step 3:
487 goes into 121 0 times with 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.
Append the next digit (5) from the dividend to 121 and continue with: 1215 / 487

Going ahead to step 4:
1215 divided by 487 is 2 with a remainder of 241.
Put 2 as the next digit of the answer. 
Result so far: 2.0
The remainder is 241 after subtracting 974 from 1215.
Include the next digit (9) from the dividend after 241, then repeat: 2419 / 487

Step 5:
2419 divided by 487 is 4 with a remainder of 471.
The next digit of our result is 4. 
Result so far: 24.0
Subtract 1948 from 2419 to get 471.
Bring next digit (8) of the dividend behind the 471 and repeat the process: 4718 / 487

Advancing to step 6:
487 can be fit into 4718 9 times, resulting in a remainder of 335.
Use 9 as the next digit of our solution. 
Result so far: 249.0
Deduct 4383 from 4718 and we're left with 335.
Fetch the next digit (8) from the dividend, attach it to 335 and continue: 3358 / 487

Going ahead to step 7:
The number 487 fits into 3358 6 times, leaving a remainder of 436.
Record the quotient 6 as the next digit in the result. 
Result so far: 2496.0
Subtract 2922 from 3358 to get 436.
Bring next digit (0) of the dividend behind the 436 and repeat the process: 4360 / 487

Going ahead to step 8:
4360 divided by 487 is 8 with a remainder of 464.
Record the quotient 8 as the next digit in the result. 
Result so far: 24968.0
If we take 3896 away from 4360, we end up with 464.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4640, and continue the process.

Going ahead to step 9:
If we divide 4640 by 487, we get 9 and a remainder of 257.
The number 9 becomes the next digit in our result. 
Result so far: 24968.9
Deduct 4383 from 4640 and we're left with 257.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2570, and continue the process.

Going ahead to step 10:
When dividing 2570 by 487, we get 5 with a remainder of 135.
Put 5 as the next digit of the answer. 
Result so far: 24968.95
The remainder is 135 after subtracting 2435 from 2570.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1350, and continue the process.

Going ahead to step 11:
487 goes into 1350 2 times with a remainder of 376.
Record the quotient 2 as the next digit in the result. 
Result so far: 24968.952
Deduct 974 from 1350 and we're left with 376.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3760, and continue the process.

On to step 12:
The number 487 fits into 3760 7 times, leaving a remainder of 351.
Use 7 as the next digit of our solution. 
Result so far: 24968.9527
Deduct 3409 from 3760 and we're left with 351.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3510, and continue the process.

Advancing to step 13:
487 goes into 3510 7 times with a remainder of 101.
The number 7 becomes the next digit in our result. 
Result so far: 24968.95277
Subtracting 3409 from 3510 leaves us with 101.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1010, and continue the process.

The final result is 24968.95277 with a remainder of 0.000101.