300742 ÷ 72 
We want to figure out the number of times 300742 can be divided by 72.

On to step 1:
3 divided by 72 is 0 with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Grab the next digit (0) from the dividend, add it to 3, then carry on: 30 / 72

On to step 2:
If we divide 30 by 72, we get 0 and a remainder of 30.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 30, we get 30.
Take the next digit (0) from the dividend and append it to 30, then repeat: 300 / 72

Going ahead to step 3:
If we divide 300 by 72, we get 4 and a remainder of 12.
Put 4 as the next digit of the answer. 
Result so far: 4.0
Subtracting 288 from 300 leaves us with 12.
Include the next digit (7) from the dividend after 12, then repeat: 127 / 72

Moving on to step 4:
72 goes into 127 1 times with a remainder of 55.
Put 1 as the next digit of the answer. 
Result so far: 41.0
If we take 72 away from 127, we end up with 55.
Take the next digit (4) from the dividend and append it to 55, then repeat: 554 / 72

Advancing to step 5:
72 can be fit into 554 7 times, resulting in a remainder of 50.
Record the quotient 7 as the next digit in the result. 
Result so far: 417.0
If we take 504 away from 554, we end up with 50.
Append the next digit (2) from the dividend to 50 and continue with: 502 / 72

Step 6:
When dividing 502 by 72, we get 6 with a remainder of 70.
The next digit of our result is 6. 
Result so far: 4176.0
Subtracting 432 from 502 leaves us with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Moving on to step 7:
72 goes into 700 9 times with a remainder of 52.
Record the quotient 9 as the next digit in the result. 
Result so far: 4176.9
The remainder is 52 after subtracting 648 from 700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Let's proceed to step 8:
520 divided by 72 is 7 with a remainder of 16.
Write down 7 as next digit of the result. 
Result so far: 4176.97
If we subtract 504 from 520, we get 16.
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:
If we divide 160 by 72, we get 2 and a remainder of 16.
Write down 2 as next digit of the result. 
Result so far: 4176.972
If we take 144 away from 160, 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.

Step 10:
If we divide 160 by 72, we get 2 and a remainder of 16.
Record the quotient 2 as the next digit in the result. 
Result so far: 4176.9722
Subtracting 144 from 160 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 outcome is 4176.9722, with a leftover of 0.00016.