We're dividing 15311945 by 509 
Our goal is to divide 15311945 by 509.

Going ahead to step 1:
509 can be fit into 1 0 times, resulting in a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Grab the next digit (5) from the dividend, add it to 1, then carry on: 15 / 509

Moving on to step 2:
509 goes into 15 0 times with a remainder of 15.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 15 to get 15.
Grab the next digit (3) from the dividend, add it to 15, then carry on: 153 / 509

Moving on to step 3:
509 can be fit into 153 0 times, resulting in a remainder of 153.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 153 to get 153.
Include the next digit (1) from the dividend after 153, then repeat: 1531 / 509

Step 4:
When dividing 1531 by 509, we get 3 with a remainder of 4.
Write down 3 as next digit of the result. 
Result so far: 3.0
Subtracting 1527 from 1531 leaves us with 4.
Bring next digit (1) of the dividend behind the 4 and repeat the process: 41 / 509

Let's proceed to step 5:
41 divided by 509 is 0 with a remainder of 41.
Record the quotient 0 as the next digit in the result. 
Result so far: 30.0
The remainder is 41 after subtracting 0 from 41.
Append the next digit (9) from the dividend to 41 and continue with: 419 / 509

Step 6:
509 goes into 419 0 times with a remainder of 419.
The number 0 becomes the next digit in our result. 
Result so far: 300.0
Subtract 0 from 419 to get 419.
Bring next digit (4) of the dividend behind the 419 and repeat the process: 4194 / 509

Advancing to step 7:
509 goes into 4194 8 times with a remainder of 122.
Write down 8 as next digit of the result. 
Result so far: 3008.0
If we take 4072 away from 4194, we end up with 122.
Include the next digit (5) from the dividend after 122, then repeat: 1225 / 509

On to step 8:
1225 divided by 509 is 2 with a remainder of 207.
Write down 2 as next digit of the result. 
Result so far: 30082.0
If we subtract 1018 from 1225, we get 207.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2070, and continue the process.

Going ahead to step 9:
509 goes into 2070 4 times with a remainder of 34.
Record the quotient 4 as the next digit in the result. 
Result so far: 30082.4
If we take 2036 away from 2070, we end up with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Advancing to step 10:
509 can be fit into 340 0 times, resulting in a remainder of 340.
The next digit of our result is 0. 
Result so far: 30082.4
If we subtract 0 from 340, we get 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

Let's proceed to step 11:
509 goes into 3400 6 times with a remainder of 346.
Record the quotient 6 as the next digit in the result. 
Result so far: 30082.406
Deduct 3054 from 3400 and we're left with 346.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3460, and continue the process.

Moving on to step 12:
3460 divided by 509 is 6 with a remainder of 406.
Put 6 as the next digit of the answer. 
Result so far: 30082.4066
Subtracting 3054 from 3460 leaves us with 406.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4060, and continue the process.

Our division results in 30082.4066 with a remaining 0.00406.