Let's divide 15457739 by 504
Our goal is to divide 15457739 by 504.

On to step 1:
When dividing 1 by 504, we get 0 with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Bring next digit (5) of the dividend behind the 1 and repeat the process: 15 / 504

Let's proceed to step 2:
The number 504 fits into 15 0 times, leaving a remainder of 15.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 15, we get 15.
Bring next digit (4) of the dividend behind the 15 and repeat the process: 154 / 504

Advancing to step 3:
504 goes into 154 0 times with a remainder of 154.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 154 leaves us with 154.
Append the next digit (5) from the dividend to 154 and continue with: 1545 / 504

Let's proceed to step 4:
The number 504 fits into 1545 3 times, leaving a remainder of 33.
The next digit of our result is 3. 
Result so far: 3.0
The remainder is 33 after subtracting 1512 from 1545.
Include the next digit (7) from the dividend after 33, then repeat: 337 / 504

On to step 5:
The number 504 fits into 337 0 times, leaving a remainder of 337.
The next digit of our result is 0. 
Result so far: 30.0
Deduct 0 from 337 and we're left with 337.
Include the next digit (7) from the dividend after 337, then repeat: 3377 / 504

Moving on to step 6:
The number 504 fits into 3377 6 times, leaving a remainder of 353.
Record the quotient 6 as the next digit in the result. 
Result so far: 306.0
Deduct 3024 from 3377 and we're left with 353.
Take the next digit (3) from the dividend and append it to 353, then repeat: 3533 / 504

Advancing to step 7:
The number 504 fits into 3533 7 times, leaving a remainder of 5.
Put 7 as the next digit of the answer. 
Result so far: 3067.0
Deduct 3528 from 3533 and we're left with 5.
Append the next digit (9) from the dividend to 5 and continue with: 59 / 504

Going ahead to step 8:
When dividing 59 by 504, we get 0 with a remainder of 59.
Record the quotient 0 as the next digit in the result. 
Result so far: 30670.0
Subtract 0 from 59 to get 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Let's proceed to step 9:
When dividing 590 by 504, we get 1 with a remainder of 86.
The next digit of our result is 1. 
Result so far: 30670.1
The remainder is 86 after subtracting 504 from 590.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

On to step 10:
504 goes into 860 1 times with a remainder of 356.
The next digit of our result is 1. 
Result so far: 30670.11
Subtracting 504 from 860 leaves us with 356.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3560, and continue the process.

The final outcome is 30670.11, with a leftover of 0.356.