We look at the division of 19125306 by 387 
We're looking to find how many times 387 goes into 19125306.

Going ahead to step 1:
If we divide 1 by 387, we get 0 and a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Grab the next digit (9) from the dividend, add it to 1, then carry on: 19 / 387

Step 2:
If we divide 19 by 387, we get 0 and a remainder of 19.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 19 to get 19.
Take the next digit (1) from the dividend and append it to 19, then repeat: 191 / 387

Going ahead to step 3:
387 can be fit into 191 0 times, resulting in a remainder of 191.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 191, we get 191.
Include the next digit (2) from the dividend after 191, then repeat: 1912 / 387

Advancing to step 4:
If we divide 1912 by 387, we get 4 and a remainder of 364.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
Deduct 1548 from 1912 and we're left with 364.
Append the next digit (5) from the dividend to 364 and continue with: 3645 / 387

On to step 5:
The number 387 fits into 3645 9 times, leaving a remainder of 162.
Record the quotient 9 as the next digit in the result. 
Result so far: 49.0
If we subtract 3483 from 3645, we get 162.
Fetch the next digit (3) from the dividend, attach it to 162 and continue: 1623 / 387

Let's proceed to step 6:
When dividing 1623 by 387, we get 4 with a remainder of 75.
Use 4 as the next digit of our solution. 
Result so far: 494.0
Subtract 1548 from 1623 to get 75.
Take the next digit (0) from the dividend and append it to 75, then repeat: 750 / 387

Moving on to step 7:
If we divide 750 by 387, we get 1 and a remainder of 363.
The number 1 becomes the next digit in our result. 
Result so far: 4941.0
The remainder is 363 after subtracting 387 from 750.
Take the next digit (6) from the dividend and append it to 363, then repeat: 3636 / 387

Step 8:
387 can be fit into 3636 9 times, resulting in a remainder of 153.
Write down 9 as next digit of the result. 
Result so far: 49419.0
If we take 3483 away from 3636, we end up with 153.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1530, and continue the process.

Step 9:
387 can be fit into 1530 3 times, resulting in a remainder of 369.
Put 3 as the next digit of the answer. 
Result so far: 49419.3
Subtract 1161 from 1530 to get 369.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3690, and continue the process.

Advancing to step 10:
The number 387 fits into 3690 9 times, leaving a remainder of 207.
Use 9 as the next digit of our solution. 
Result so far: 49419.39
Subtracting 3483 from 3690 leaves us with 207.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2070, and continue the process.

On to step 11:
2070 divided by 387 is 5 with a remainder of 135.
The next digit of our result is 5. 
Result so far: 49419.395
Subtracting 1935 from 2070 leaves us with 135.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1350, and continue the process.

Step 12:
387 goes into 1350 3 times with a remainder of 189.
The number 3 becomes the next digit in our result. 
Result so far: 49419.3953
The remainder is 189 after subtracting 1161 from 1350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1890, and continue the process.

Step 13:
If we divide 1890 by 387, we get 4 and a remainder of 342.
Put 4 as the next digit of the answer. 
Result so far: 49419.39534
If we take 1548 away from 1890, we end up with 342.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3420, and continue the process.

Going ahead to step 14:
387 goes into 3420 8 times with a remainder of 324.
Write down 8 as next digit of the result. 
Result so far: 49419.395348
Subtracting 3096 from 3420 leaves us with 324.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3240, and continue the process.

On to step 15:
If we divide 3240 by 387, we get 8 and a remainder of 144.
Put 8 as the next digit of the answer. 
Result so far: 49419.3953488
Deduct 3096 from 3240 and we're left with 144.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1440, and continue the process.

After the division, we end up with 49419.3953488 and a remainder of 1.44e-06.