We're dividing 13386310 by 129 
We want to divide 13386310 by 129.

On to step 1:
The number 129 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
If we take 0 away from 1, we end up with 1.
Bring next digit (3) of the dividend behind the 1 and repeat the process: 13 / 129

Let's proceed to step 2:
13 divided by 129 is 0 with a remainder of 13.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 13, we end up with 13.
Include the next digit (3) from the dividend after 13, then repeat: 133 / 129

Advancing to step 3:
When dividing 133 by 129, we get 1 with a remainder of 4.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 129 from 133 and we're left with 4.
Bring next digit (8) of the dividend behind the 4 and repeat the process: 48 / 129

On to step 4:
The number 129 fits into 48 0 times, leaving a remainder of 48.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
If we take 0 away from 48, we end up with 48.
Fetch the next digit (6) from the dividend, attach it to 48 and continue: 486 / 129

Moving on to step 5:
129 can be fit into 486 3 times, resulting in a remainder of 99.
Use 3 as the next digit of our solution. 
Result so far: 103.0
If we subtract 387 from 486, we get 99.
Fetch the next digit (3) from the dividend, attach it to 99 and continue: 993 / 129

Let's proceed to step 6:
129 can be fit into 993 7 times, resulting in a remainder of 90.
Record the quotient 7 as the next digit in the result. 
Result so far: 1037.0
Deduct 903 from 993 and we're left with 90.
Take the next digit (1) from the dividend and append it to 90, then repeat: 901 / 129

Going ahead to step 7:
129 can be fit into 901 6 times, resulting in a remainder of 127.
The next digit of our result is 6. 
Result so far: 10376.0
If we take 774 away from 901, we end up with 127.
Append the next digit (0) from the dividend to 127 and continue with: 1270 / 129

Going ahead to step 8:
129 goes into 1270 9 times with a remainder of 109.
Write down 9 as next digit of the result. 
Result so far: 103769.0
The remainder is 109 after subtracting 1161 from 1270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1090, and continue the process.

Moving on to step 9:
When dividing 1090 by 129, we get 8 with a remainder of 58.
The number 8 becomes the next digit in our result. 
Result so far: 103769.8
Subtracting 1032 from 1090 leaves us with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

On to step 10:
The number 129 fits into 580 4 times, leaving a remainder of 64.
Write down 4 as next digit of the result. 
Result so far: 103769.84
The remainder is 64 after subtracting 516 from 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Step 11:
640 divided by 129 is 4 with a remainder of 124.
The next digit of our result is 4. 
Result so far: 103769.844
Deduct 516 from 640 and we're left with 124.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1240, and continue the process.

The quotient of the division is 103769.844, and the remainder is 0.0124.