306145 ÷ 72 
We're looking to find how many times 72 goes into 306145.

On to step 1:
3 divided by 72 is 0 with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Bring next digit (0) of the dividend behind the 3 and repeat the process: 30 / 72

Advancing to step 2:
When dividing 30 by 72, we get 0 with a remainder of 30.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 30 leaves us with 30.
Append the next digit (6) from the dividend to 30 and continue with: 306 / 72

Step 3:
306 divided by 72 is 4 with a remainder of 18.
Put 4 as the next digit of the answer. 
Result so far: 4.0
Subtracting 288 from 306 leaves us with 18.
Take the next digit (1) from the dividend and append it to 18, then repeat: 181 / 72

Moving on to step 4:
72 goes into 181 2 times with a remainder of 37.
Use 2 as the next digit of our solution. 
Result so far: 42.0
If we take 144 away from 181, we end up with 37.
Take the next digit (4) from the dividend and append it to 37, then repeat: 374 / 72

Step 5:
72 goes into 374 5 times with a remainder of 14.
The next digit of our result is 5. 
Result so far: 425.0
Subtracting 360 from 374 leaves us with 14.
Append the next digit (5) from the dividend to 14 and continue with: 145 / 72

Advancing to step 6:
72 can be fit into 145 2 times, resulting in a remainder of 1.
Write down 2 as next digit of the result. 
Result so far: 4252.0
Deduct 144 from 145 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 7:
The number 72 fits into 10 0 times, leaving a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 4252.0
If we subtract 0 from 10, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 8:
72 can be fit into 100 1 times, resulting in a remainder of 28.
Use 1 as the next digit of our solution. 
Result so far: 4252.01
If we subtract 72 from 100, we get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Advancing to step 9:
280 divided by 72 is 3 with a remainder of 64.
Write down 3 as next digit of the result. 
Result so far: 4252.013
Subtract 216 from 280 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.

On to step 10:
The number 72 fits into 640 8 times, leaving a remainder of 64.
The number 8 becomes the next digit in our result. 
Result so far: 4252.0138
Deduct 576 from 640 and we're left with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

On to step 11:
When dividing 640 by 72, we get 8 with a remainder of 64.
The number 8 becomes the next digit in our result. 
Result so far: 4252.01388
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.

The quotient of the division is 4252.01388, and the remainder is 6.4e-05.