We're dividing 12218506 by 879 
Our goal is to divide 12218506 by 879.

Let's proceed to step 1:
The number 879 fits into 1 0 times, leaving 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.
Bring next digit (2) of the dividend behind the 1 and repeat the process: 12 / 879

Moving on to step 2:
If we divide 12 by 879, we get 0 and a remainder of 12.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 12, we get 12.
Bring next digit (2) of the dividend behind the 12 and repeat the process: 122 / 879

Moving on to step 3:
879 goes into 122 0 times with a remainder of 122.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 122 and we're left with 122.
Append the next digit (1) from the dividend to 122 and continue with: 1221 / 879

On to step 4:
The number 879 fits into 1221 1 times, leaving a remainder of 342.
The next digit of our result is 1. 
Result so far: 1.0
If we take 879 away from 1221, we end up with 342.
Include the next digit (8) from the dividend after 342, then repeat: 3428 / 879

Moving on to step 5:
879 can be fit into 3428 3 times, resulting in a remainder of 791.
Record the quotient 3 as the next digit in the result. 
Result so far: 13.0
If we take 2637 away from 3428, we end up with 791.
Grab the next digit (5) from the dividend, add it to 791, then carry on: 7915 / 879

Moving on to step 6:
7915 divided by 879 is 9 with a remainder of 4.
Put 9 as the next digit of the answer. 
Result so far: 139.0
Subtracting 7911 from 7915 leaves us with 4.
Bring next digit (0) of the dividend behind the 4 and repeat the process: 40 / 879

Going ahead to step 7:
The number 879 fits into 40 0 times, leaving a remainder of 40.
The next digit of our result is 0. 
Result so far: 1390.0
Deduct 0 from 40 and we're left with 40.
Append the next digit (6) from the dividend to 40 and continue with: 406 / 879

Going ahead to step 8:
879 goes into 406 0 times with a remainder of 406.
Record the quotient 0 as the next digit in the result. 
Result so far: 13900.0
Subtract 0 from 406 to get 406.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4060, and continue the process.

Going ahead to step 9:
879 goes into 4060 4 times with a remainder of 544.
Put 4 as the next digit of the answer. 
Result so far: 13900.4
If we subtract 3516 from 4060, we get 544.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5440, and continue the process.

Going ahead to step 10:
879 goes into 5440 6 times with a remainder of 166.
Use 6 as the next digit of our solution. 
Result so far: 13900.46
The remainder is 166 after subtracting 5274 from 5440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1660, and continue the process.

Advancing to step 11:
1660 divided by 879 is 1 with a remainder of 781.
Record the quotient 1 as the next digit in the result. 
Result so far: 13900.461
Deduct 879 from 1660 and we're left with 781.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7810, and continue the process.

On to step 12:
If we divide 7810 by 879, we get 8 and a remainder of 778.
The number 8 becomes the next digit in our result. 
Result so far: 13900.4618
Deduct 7032 from 7810 and we're left with 778.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7780, and continue the process.

Step 13:
879 goes into 7780 8 times with a remainder of 748.
Write down 8 as next digit of the result. 
Result so far: 13900.46188
If we subtract 7032 from 7780, we get 748.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7480, and continue the process.

The quotient of the division is 13900.46188, and the remainder is 0.000748.