39158264 divided by 309 
We want to figure out the number of times 39158264 can be divided by 309.

Advancing to step 1:
3 divided by 309 is 0 with a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Grab the next digit (9) from the dividend, add it to 3, then carry on: 39 / 309

Let's proceed to step 2:
309 can be fit into 39 0 times, resulting in a remainder of 39.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 39 and we're left with 39.
Fetch the next digit (1) from the dividend, attach it to 39 and continue: 391 / 309

Let's proceed to step 3:
The number 309 fits into 391 1 times, leaving a remainder of 82.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 309 from 391 leaves us with 82.
Take the next digit (5) from the dividend and append it to 82, then repeat: 825 / 309

Moving on to step 4:
825 divided by 309 is 2 with a remainder of 207.
Write down 2 as next digit of the result. 
Result so far: 12.0
Subtracting 618 from 825 leaves us with 207.
Fetch the next digit (8) from the dividend, attach it to 207 and continue: 2078 / 309

On to step 5:
If we divide 2078 by 309, we get 6 and a remainder of 224.
The number 6 becomes the next digit in our result. 
Result so far: 126.0
Subtracting 1854 from 2078 leaves us with 224.
Include the next digit (2) from the dividend after 224, then repeat: 2242 / 309

Going ahead to step 6:
2242 divided by 309 is 7 with a remainder of 79.
The number 7 becomes the next digit in our result. 
Result so far: 1267.0
Subtracting 2163 from 2242 leaves us with 79.
Bring next digit (6) of the dividend behind the 79 and repeat the process: 796 / 309

Moving on to step 7:
309 can be fit into 796 2 times, resulting in a remainder of 178.
The next digit of our result is 2. 
Result so far: 12672.0
Deduct 618 from 796 and we're left with 178.
Bring next digit (4) of the dividend behind the 178 and repeat the process: 1784 / 309

Moving on to step 8:
The number 309 fits into 1784 5 times, leaving a remainder of 239.
Record the quotient 5 as the next digit in the result. 
Result so far: 126725.0
If we take 1545 away from 1784, we end up with 239.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2390, and continue the process.

Moving on to step 9:
When dividing 2390 by 309, we get 7 with a remainder of 227.
Record the quotient 7 as the next digit in the result. 
Result so far: 126725.7
If we subtract 2163 from 2390, we get 227.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2270, and continue the process.

On to step 10:
The number 309 fits into 2270 7 times, leaving a remainder of 107.
Record the quotient 7 as the next digit in the result. 
Result so far: 126725.77
Subtracting 2163 from 2270 leaves us with 107.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1070, and continue the process.

After the division, we end up with 126725.77 and a remainder of 0.107.