72531512 divided by 509 
We want to figure out the number of times 72531512 can be divided by 509.

Moving on to step 1:
The number 509 fits into 7 0 times, leaving a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Grab the next digit (2) from the dividend, add it to 7, then carry on: 72 / 509

Step 2:
When dividing 72 by 509, we get 0 with a remainder of 72.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 72 and we're left with 72.
Fetch the next digit (5) from the dividend, attach it to 72 and continue: 725 / 509

Moving on to step 3:
509 can be fit into 725 1 times, resulting in a remainder of 216.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 509 from 725 leaves us with 216.
Fetch the next digit (3) from the dividend, attach it to 216 and continue: 2163 / 509

Going ahead to step 4:
The number 509 fits into 2163 4 times, leaving a remainder of 127.
The number 4 becomes the next digit in our result. 
Result so far: 14.0
Subtract 2036 from 2163 to get 127.
Grab the next digit (1) from the dividend, add it to 127, then carry on: 1271 / 509

Moving on to step 5:
The number 509 fits into 1271 2 times, leaving a remainder of 253.
The number 2 becomes the next digit in our result. 
Result so far: 142.0
If we subtract 1018 from 1271, we get 253.
Fetch the next digit (5) from the dividend, attach it to 253 and continue: 2535 / 509

Advancing to step 6:
If we divide 2535 by 509, we get 4 and a remainder of 499.
Use 4 as the next digit of our solution. 
Result so far: 1424.0
If we subtract 2036 from 2535, we get 499.
Grab the next digit (1) from the dividend, add it to 499, then carry on: 4991 / 509

Advancing to step 7:
The number 509 fits into 4991 9 times, leaving a remainder of 410.
Use 9 as the next digit of our solution. 
Result so far: 14249.0
Subtracting 4581 from 4991 leaves us with 410.
Include the next digit (2) from the dividend after 410, then repeat: 4102 / 509

Step 8:
4102 divided by 509 is 8 with a remainder of 30.
Write down 8 as next digit of the result. 
Result so far: 142498.0
Deduct 4072 from 4102 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 9:
When dividing 300 by 509, we get 0 with a remainder of 300.
The next digit of our result is 0. 
Result so far: 142498.0
If we take 0 away from 300, we end up with 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Let's proceed to step 10:
The number 509 fits into 3000 5 times, leaving a remainder of 455.
Write down 5 as next digit of the result. 
Result so far: 142498.05
Subtracting 2545 from 3000 leaves us with 455.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4550, and continue the process.

Step 11:
If we divide 4550 by 509, we get 8 and a remainder of 478.
Use 8 as the next digit of our solution. 
Result so far: 142498.058
The remainder is 478 after subtracting 4072 from 4550.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4780, and continue the process.

Going ahead to step 12:
If we divide 4780 by 509, we get 9 and a remainder of 199.
Record the quotient 9 as the next digit in the result. 
Result so far: 142498.0589
The remainder is 199 after subtracting 4581 from 4780.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1990, and continue the process.

Moving on to step 13:
The number 509 fits into 1990 3 times, leaving a remainder of 463.
The number 3 becomes the next digit in our result. 
Result so far: 142498.05893
If we subtract 1527 from 1990, we get 463.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4630, and continue the process.

Let's proceed to step 14:
If we divide 4630 by 509, we get 9 and a remainder of 49.
Record the quotient 9 as the next digit in the result. 
Result so far: 142498.058939
If we take 4581 away from 4630, we end up with 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Let's proceed to step 15:
When dividing 490 by 509, we get 0 with a remainder of 490.
Put 0 as the next digit of the answer. 
Result so far: 142498.058939
If we take 0 away from 490, we end up with 490.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4900, and continue the process.

Going ahead to step 16:
When dividing 4900 by 509, we get 9 with a remainder of 319.
Use 9 as the next digit of our solution. 
Result so far: 142498.05893909
Subtracting 4581 from 4900 leaves us with 319.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3190, and continue the process.

The final outcome is 142498.05893909, with a leftover of 3.19e-07.