We're dividing 15438776 by 503 
Let's see how many times 503 fits into 15438776.

Let's proceed to step 1:
503 goes into 1 0 times with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Fetch the next digit (5) from the dividend, attach it to 1 and continue: 15 / 503

Advancing to step 2:
If we divide 15 by 503, we get 0 and a remainder of 15.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 15 leaves us with 15.
Bring next digit (4) of the dividend behind the 15 and repeat the process: 154 / 503

Advancing to step 3:
503 can be fit into 154 0 times, resulting in a remainder of 154.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 154 after subtracting 0 from 154.
Include the next digit (3) from the dividend after 154, then repeat: 1543 / 503

Step 4:
When dividing 1543 by 503, we get 3 with a remainder of 34.
The next digit of our result is 3. 
Result so far: 3.0
Subtracting 1509 from 1543 leaves us with 34.
Include the next digit (8) from the dividend after 34, then repeat: 348 / 503

Going ahead to step 5:
348 divided by 503 is 0 with a remainder of 348.
The next digit of our result is 0. 
Result so far: 30.0
If we take 0 away from 348, we end up with 348.
Append the next digit (7) from the dividend to 348 and continue with: 3487 / 503

Step 6:
503 can be fit into 3487 6 times, resulting in a remainder of 469.
Record the quotient 6 as the next digit in the result. 
Result so far: 306.0
The remainder is 469 after subtracting 3018 from 3487.
Append the next digit (7) from the dividend to 469 and continue with: 4697 / 503

Going ahead to step 7:
The number 503 fits into 4697 9 times, leaving a remainder of 170.
Put 9 as the next digit of the answer. 
Result so far: 3069.0
Deduct 4527 from 4697 and we're left with 170.
Fetch the next digit (6) from the dividend, attach it to 170 and continue: 1706 / 503

Moving on to step 8:
503 can be fit into 1706 3 times, resulting in a remainder of 197.
Record the quotient 3 as the next digit in the result. 
Result so far: 30693.0
Subtract 1509 from 1706 to get 197.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1970, and continue the process.

Step 9:
The number 503 fits into 1970 3 times, leaving a remainder of 461.
Record the quotient 3 as the next digit in the result. 
Result so far: 30693.3
If we take 1509 away from 1970, we end up with 461.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4610, and continue the process.

Moving on to step 10:
503 goes into 4610 9 times with a remainder of 83.
Put 9 as the next digit of the answer. 
Result so far: 30693.39
If we subtract 4527 from 4610, we get 83.
Since there are no more digits in the dividend, we add a zero to the remainder making it 830, and continue the process.

On to step 11:
When dividing 830 by 503, we get 1 with a remainder of 327.
The number 1 becomes the next digit in our result. 
Result so far: 30693.391
If we take 503 away from 830, we end up with 327.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3270, and continue the process.

Going ahead to step 12:
If we divide 3270 by 503, we get 6 and a remainder of 252.
The next digit of our result is 6. 
Result so far: 30693.3916
Subtracting 3018 from 3270 leaves us with 252.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2520, and continue the process.

Going ahead to step 13:
When dividing 2520 by 503, we get 5 with a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 30693.39165
Deduct 2515 from 2520 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 14:
50 divided by 503 is 0 with a remainder of 50.
Use 0 as the next digit of our solution. 
Result so far: 30693.39165
Subtracting 0 from 50 leaves us with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Advancing to step 15:
When dividing 500 by 503, we get 0 with a remainder of 500.
Record the quotient 0 as the next digit in the result. 
Result so far: 30693.39165
Subtracting 0 from 500 leaves us with 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5000, and continue the process.

After the division, we end up with 30693.39165 and a remainder of 5e-06.