129408 ÷ 53 
We want to figure out the number of times 129408 can be divided by 53.

Let's proceed to step 1:
When dividing 1 by 53, we get 0 with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Take the next digit (2) from the dividend and append it to 1, then repeat: 12 / 53

On to step 2:
The number 53 fits into 12 0 times, leaving a remainder of 12.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 12 to get 12.
Append the next digit (9) from the dividend to 12 and continue with: 129 / 53

Advancing to step 3:
The number 53 fits into 129 2 times, leaving a remainder of 23.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Deduct 106 from 129 and we're left with 23.
Append the next digit (4) from the dividend to 23 and continue with: 234 / 53

Moving on to step 4:
If we divide 234 by 53, we get 4 and a remainder of 22.
Use 4 as the next digit of our solution. 
Result so far: 24.0
If we subtract 212 from 234, we get 22.
Grab the next digit (0) from the dividend, add it to 22, then carry on: 220 / 53

Going ahead to step 5:
220 divided by 53 is 4 with a remainder of 8.
Record the quotient 4 as the next digit in the result. 
Result so far: 244.0
If we subtract 212 from 220, we get 8.
Take the next digit (8) from the dividend and append it to 8, then repeat: 88 / 53

On to step 6:
The number 53 fits into 88 1 times, leaving a remainder of 35.
Put 1 as the next digit of the answer. 
Result so far: 2441.0
Deduct 53 from 88 and we're left with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Moving on to step 7:
When dividing 350 by 53, we get 6 with a remainder of 32.
Put 6 as the next digit of the answer. 
Result so far: 2441.6
The remainder is 32 after subtracting 318 from 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Let's proceed to step 8:
53 can be fit into 320 6 times, resulting in a remainder of 2.
Put 6 as the next digit of the answer. 
Result so far: 2441.66
The remainder is 2 after subtracting 318 from 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

The quotient of the division is 2441.66, and the remainder is 0.002.