18509392 ÷ 72 
We want to figure out the number of times 18509392 can be divided by 72.

Moving on to step 1:
When dividing 1 by 72, we get 0 with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Take the next digit (8) from the dividend and append it to 1, then repeat: 18 / 72

Advancing to step 2:
72 goes into 18 0 times with a remainder of 18.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 18 to get 18.
Append the next digit (5) from the dividend to 18 and continue with: 185 / 72

Let's proceed to step 3:
185 divided by 72 is 2 with a remainder of 41.
Use 2 as the next digit of our solution. 
Result so far: 2.0
If we take 144 away from 185, we end up with 41.
Include the next digit (0) from the dividend after 41, then repeat: 410 / 72

Moving on to step 4:
When dividing 410 by 72, we get 5 with a remainder of 50.
Record the quotient 5 as the next digit in the result. 
Result so far: 25.0
The remainder is 50 after subtracting 360 from 410.
Fetch the next digit (9) from the dividend, attach it to 50 and continue: 509 / 72

Moving on to step 5:
509 divided by 72 is 7 with a remainder of 5.
Put 7 as the next digit of the answer. 
Result so far: 257.0
If we subtract 504 from 509, we get 5.
Include the next digit (3) from the dividend after 5, then repeat: 53 / 72

Advancing to step 6:
When dividing 53 by 72, we get 0 with a remainder of 53.
Use 0 as the next digit of our solution. 
Result so far: 2570.0
Subtracting 0 from 53 leaves us with 53.
Fetch the next digit (9) from the dividend, attach it to 53 and continue: 539 / 72

On to step 7:
72 can be fit into 539 7 times, resulting in a remainder of 35.
The number 7 becomes the next digit in our result. 
Result so far: 25707.0
Deduct 504 from 539 and we're left with 35.
Include the next digit (2) from the dividend after 35, then repeat: 352 / 72

Moving on to step 8:
When dividing 352 by 72, we get 4 with a remainder of 64.
The number 4 becomes the next digit in our result. 
Result so far: 257074.0
The remainder is 64 after subtracting 288 from 352.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Going ahead to step 9:
If we divide 640 by 72, we get 8 and a remainder of 64.
The next digit of our result is 8. 
Result so far: 257074.8
Subtract 576 from 640 to get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Let's proceed to step 10:
When dividing 640 by 72, we get 8 with a remainder of 64.
The next digit of our result is 8. 
Result so far: 257074.88
If we subtract 576 from 640, we get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

The quotient of the division is 257074.88, and the remainder is 0.064.