We look at the division of 53159904 by 144 
We want to figure out the number of times 53159904 can be divided by 144.

Moving on to step 1:
If we divide 5 by 144, we get 0 and a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Take the next digit (3) from the dividend and append it to 5, then repeat: 53 / 144

Let's proceed to step 2:
144 goes into 53 0 times with a remainder of 53.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 53 and we're left with 53.
Take the next digit (1) from the dividend and append it to 53, then repeat: 531 / 144

On to step 3:
144 goes into 531 3 times with a remainder of 99.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
If we subtract 432 from 531, we get 99.
Fetch the next digit (5) from the dividend, attach it to 99 and continue: 995 / 144

Moving on to step 4:
If we divide 995 by 144, we get 6 and a remainder of 131.
Use 6 as the next digit of our solution. 
Result so far: 36.0
The remainder is 131 after subtracting 864 from 995.
Fetch the next digit (9) from the dividend, attach it to 131 and continue: 1319 / 144

Moving on to step 5:
When dividing 1319 by 144, we get 9 with a remainder of 23.
Put 9 as the next digit of the answer. 
Result so far: 369.0
Subtracting 1296 from 1319 leaves us with 23.
Bring next digit (9) of the dividend behind the 23 and repeat the process: 239 / 144

Going ahead to step 6:
144 can be fit into 239 1 times, resulting in a remainder of 95.
Put 1 as the next digit of the answer. 
Result so far: 3691.0
If we subtract 144 from 239, we get 95.
Fetch the next digit (0) from the dividend, attach it to 95 and continue: 950 / 144

Going ahead to step 7:
950 divided by 144 is 6 with a remainder of 86.
Use 6 as the next digit of our solution. 
Result so far: 36916.0
If we subtract 864 from 950, we get 86.
Include the next digit (4) from the dividend after 86, then repeat: 864 / 144

Let's proceed to step 8:
864 divided by 144 is 6 with a remainder of 0.
Write down 6 as next digit of the result. 
Result so far: 369166.0
Subtract 864 from 864 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 9:
0 divided by 144 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 369166.0
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 10:
When dividing 0 by 144, we get 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 369166.0
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 369166.0, with a leftover of 0.0.