Let's divide 39375309 by 51
We want to divide 39375309 by 51.

Let's proceed to step 1:
The number 51 fits into 3 0 times, leaving a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Include the next digit (9) from the dividend after 3, then repeat: 39 / 51

Going ahead to step 2:
The number 51 fits into 39 0 times, leaving a remainder of 39.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 39 leaves us with 39.
Take the next digit (3) from the dividend and append it to 39, then repeat: 393 / 51

Advancing to step 3:
The number 51 fits into 393 7 times, leaving a remainder of 36.
Use 7 as the next digit of our solution. 
Result so far: 7.0
The remainder is 36 after subtracting 357 from 393.
Append the next digit (7) from the dividend to 36 and continue with: 367 / 51

Advancing to step 4:
If we divide 367 by 51, we get 7 and a remainder of 10.
The number 7 becomes the next digit in our result. 
Result so far: 77.0
Subtract 357 from 367 to get 10.
Append the next digit (5) from the dividend to 10 and continue with: 105 / 51

On to step 5:
105 divided by 51 is 2 with a remainder of 3.
Put 2 as the next digit of the answer. 
Result so far: 772.0
The remainder is 3 after subtracting 102 from 105.
Include the next digit (3) from the dividend after 3, then repeat: 33 / 51

Moving on to step 6:
33 divided by 51 is 0 with a remainder of 33.
The next digit of our result is 0. 
Result so far: 7720.0
The remainder is 33 after subtracting 0 from 33.
Fetch the next digit (0) from the dividend, attach it to 33 and continue: 330 / 51

Step 7:
The number 51 fits into 330 6 times, leaving a remainder of 24.
Put 6 as the next digit of the answer. 
Result so far: 77206.0
If we subtract 306 from 330, we get 24.
Include the next digit (9) from the dividend after 24, then repeat: 249 / 51

Going ahead to step 8:
When dividing 249 by 51, we get 4 with a remainder of 45.
Write down 4 as next digit of the result. 
Result so far: 772064.0
Deduct 204 from 249 and we're left with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Moving on to step 9:
The number 51 fits into 450 8 times, leaving a remainder of 42.
Record the quotient 8 as the next digit in the result. 
Result so far: 772064.8
Subtracting 408 from 450 leaves us with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Moving on to step 10:
51 goes into 420 8 times with a remainder of 12.
The number 8 becomes the next digit in our result. 
Result so far: 772064.88
The remainder is 12 after subtracting 408 from 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

The final outcome is 772064.88, with a leftover of 0.012.