72445153 divided by 309 
We're looking to find how many times 309 goes into 72445153.

Let's proceed to step 1:
309 goes into 7 0 times with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Append the next digit (2) from the dividend to 7 and continue with: 72 / 309

Moving on to step 2:
The number 309 fits into 72 0 times, leaving a remainder of 72.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 72, we get 72.
Include the next digit (4) from the dividend after 72, then repeat: 724 / 309

On to step 3:
The number 309 fits into 724 2 times, leaving a remainder of 106.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Subtract 618 from 724 to get 106.
Include the next digit (4) from the dividend after 106, then repeat: 1064 / 309

On to step 4:
The number 309 fits into 1064 3 times, leaving a remainder of 137.
Put 3 as the next digit of the answer. 
Result so far: 23.0
Subtracting 927 from 1064 leaves us with 137.
Bring next digit (5) of the dividend behind the 137 and repeat the process: 1375 / 309

Going ahead to step 5:
309 can be fit into 1375 4 times, resulting in a remainder of 139.
Write down 4 as next digit of the result. 
Result so far: 234.0
If we take 1236 away from 1375, we end up with 139.
Include the next digit (1) from the dividend after 139, then repeat: 1391 / 309

Going ahead to step 6:
309 can be fit into 1391 4 times, resulting in a remainder of 155.
Use 4 as the next digit of our solution. 
Result so far: 2344.0
If we take 1236 away from 1391, we end up with 155.
Bring next digit (5) of the dividend behind the 155 and repeat the process: 1555 / 309

On to step 7:
The number 309 fits into 1555 5 times, leaving a remainder of 10.
Write down 5 as next digit of the result. 
Result so far: 23445.0
Deduct 1545 from 1555 and we're left with 10.
Include the next digit (3) from the dividend after 10, then repeat: 103 / 309

Step 8:
103 divided by 309 is 0 with a remainder of 103.
Use 0 as the next digit of our solution. 
Result so far: 234450.0
The remainder is 103 after subtracting 0 from 103.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1030, and continue the process.

Going ahead to step 9:
When dividing 1030 by 309, we get 3 with a remainder of 103.
Put 3 as the next digit of the answer. 
Result so far: 234450.3
If we take 927 away from 1030, we end up with 103.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1030, and continue the process.

Step 10:
The number 309 fits into 1030 3 times, leaving a remainder of 103.
The next digit of our result is 3. 
Result so far: 234450.33
Subtracting 927 from 1030 leaves us with 103.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1030, and continue the process.

The final outcome is 234450.33, with a leftover of 0.103.