We're dividing 129409 by 33 
We want to figure out the number of times 129409 can be divided by 33.

Let's proceed to step 1:
If we divide 1 by 33, we get 0 and 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.
Append the next digit (2) from the dividend to 1 and continue with: 12 / 33

Moving on to step 2:
33 goes into 12 0 times with a remainder of 12.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 12 leaves us with 12.
Fetch the next digit (9) from the dividend, attach it to 12 and continue: 129 / 33

Moving on to step 3:
33 can be fit into 129 3 times, resulting in a remainder of 30.
Write down 3 as next digit of the result. 
Result so far: 3.0
Subtracting 99 from 129 leaves us with 30.
Take the next digit (4) from the dividend and append it to 30, then repeat: 304 / 33

Going ahead to step 4:
304 divided by 33 is 9 with a remainder of 7.
The number 9 becomes the next digit in our result. 
Result so far: 39.0
If we subtract 297 from 304, we get 7.
Take the next digit (0) from the dividend and append it to 7, then repeat: 70 / 33

Moving on to step 5:
If we divide 70 by 33, we get 2 and a remainder of 4.
The number 2 becomes the next digit in our result. 
Result so far: 392.0
Subtracting 66 from 70 leaves us with 4.
Append the next digit (9) from the dividend to 4 and continue with: 49 / 33

Let's proceed to step 6:
When dividing 49 by 33, we get 1 with a remainder of 16.
The next digit of our result is 1. 
Result so far: 3921.0
If we take 33 away from 49, we end up 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.

Moving on to step 7:
The number 33 fits into 160 4 times, leaving a remainder of 28.
The number 4 becomes the next digit in our result. 
Result so far: 3921.4
If we subtract 132 from 160, we get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Moving on to step 8:
33 can be fit into 280 8 times, resulting in a remainder of 16.
Write down 8 as next digit of the result. 
Result so far: 3921.48
The remainder is 16 after subtracting 264 from 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 9:
33 can be fit into 160 4 times, resulting in a remainder of 28.
Write down 4 as next digit of the result. 
Result so far: 3921.484
Deduct 132 from 160 and we're left with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Step 10:
If we divide 280 by 33, we get 8 and a remainder of 16.
Put 8 as the next digit of the answer. 
Result so far: 3921.4848
Deduct 264 from 280 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.

Advancing to step 11:
33 can be fit into 160 4 times, resulting in a remainder of 28.
Put 4 as the next digit of the answer. 
Result so far: 3921.48484
If we take 132 away from 160, we end up with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

On to step 12:
33 can be fit into 280 8 times, resulting in a remainder of 16.
The next digit of our result is 8. 
Result so far: 3921.484848
The remainder is 16 after subtracting 264 from 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 13:
The number 33 fits into 160 4 times, leaving a remainder of 28.
The next digit of our result is 4. 
Result so far: 3921.4848484
If we take 132 away from 160, we end up with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

On to step 14:
33 can be fit into 280 8 times, resulting in a remainder of 16.
Write down 8 as next digit of the result. 
Result so far: 3921.48484848
Subtracting 264 from 280 leaves us 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.

The final result is 3921.48484848 with a remainder of 1.6e-08.