12664124 ÷ 863 
We're looking to find how many times 863 goes into 12664124.

Moving on to step 1:
863 can be fit into 1 0 times, resulting in a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Bring next digit (2) of the dividend behind the 1 and repeat the process: 12 / 863

Moving on to step 2:
863 goes into 12 0 times with a remainder of 12.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 12 to get 12.
Bring next digit (6) of the dividend behind the 12 and repeat the process: 126 / 863

Step 3:
The number 863 fits into 126 0 times, leaving a remainder of 126.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 126 to get 126.
Fetch the next digit (6) from the dividend, attach it to 126 and continue: 1266 / 863

Moving on to step 4:
The number 863 fits into 1266 1 times, leaving a remainder of 403.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 403 after subtracting 863 from 1266.
Append the next digit (4) from the dividend to 403 and continue with: 4034 / 863

Step 5:
When dividing 4034 by 863, we get 4 with a remainder of 582.
Use 4 as the next digit of our solution. 
Result so far: 14.0
Deduct 3452 from 4034 and we're left with 582.
Grab the next digit (1) from the dividend, add it to 582, then carry on: 5821 / 863

Advancing to step 6:
863 goes into 5821 6 times with a remainder of 643.
Use 6 as the next digit of our solution. 
Result so far: 146.0
If we subtract 5178 from 5821, we get 643.
Take the next digit (2) from the dividend and append it to 643, then repeat: 6432 / 863

On to step 7:
When dividing 6432 by 863, we get 7 with a remainder of 391.
Use 7 as the next digit of our solution. 
Result so far: 1467.0
Subtract 6041 from 6432 to get 391.
Take the next digit (4) from the dividend and append it to 391, then repeat: 3914 / 863

Moving on to step 8:
When dividing 3914 by 863, we get 4 with a remainder of 462.
Record the quotient 4 as the next digit in the result. 
Result so far: 14674.0
If we subtract 3452 from 3914, we get 462.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4620, and continue the process.

Advancing to step 9:
863 goes into 4620 5 times with a remainder of 305.
Record the quotient 5 as the next digit in the result. 
Result so far: 14674.5
Deduct 4315 from 4620 and we're left with 305.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3050, and continue the process.

Moving on to step 10:
3050 divided by 863 is 3 with a remainder of 461.
Write down 3 as next digit of the result. 
Result so far: 14674.53
If we take 2589 away from 3050, we end up with 461.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4610, and continue the process.

Let's proceed to step 11:
When dividing 4610 by 863, we get 5 with a remainder of 295.
The next digit of our result is 5. 
Result so far: 14674.535
If we subtract 4315 from 4610, we get 295.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2950, and continue the process.

Step 12:
863 goes into 2950 3 times with a remainder of 361.
The number 3 becomes the next digit in our result. 
Result so far: 14674.5353
Subtracting 2589 from 2950 leaves us with 361.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3610, and continue the process.

On to step 13:
863 goes into 3610 4 times with a remainder of 158.
Write down 4 as next digit of the result. 
Result so far: 14674.53534
If we take 3452 away from 3610, we end up with 158.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1580, and continue the process.

Advancing to step 14:
863 can be fit into 1580 1 times, resulting in a remainder of 717.
The next digit of our result is 1. 
Result so far: 14674.535341
Subtract 863 from 1580 to get 717.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7170, and continue the process.

Moving on to step 15:
7170 divided by 863 is 8 with a remainder of 266.
The number 8 becomes the next digit in our result. 
Result so far: 14674.5353418
The remainder is 266 after subtracting 6904 from 7170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2660, and continue the process.

Step 16:
When dividing 2660 by 863, we get 3 with a remainder of 71.
Use 3 as the next digit of our solution. 
Result so far: 14674.53534183
Subtracting 2589 from 2660 leaves us with 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

The final outcome is 14674.53534183, with a leftover of 7.1e-08.