15271385 ÷ 809 
We want to divide 15271385 by 809.

Let's proceed to step 1:
If we divide 1 by 809, we get 0 and a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Append the next digit (5) from the dividend to 1 and continue with: 15 / 809

Let's proceed to step 2:
15 divided by 809 is 0 with a remainder of 15.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 15 after subtracting 0 from 15.
Bring next digit (2) of the dividend behind the 15 and repeat the process: 152 / 809

Moving on to step 3:
152 divided by 809 is 0 with a remainder of 152.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 152, we end up with 152.
Take the next digit (7) from the dividend and append it to 152, then repeat: 1527 / 809

Moving on to step 4:
The number 809 fits into 1527 1 times, leaving a remainder of 718.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 809 from 1527, we get 718.
Bring next digit (1) of the dividend behind the 718 and repeat the process: 7181 / 809

Going ahead to step 5:
If we divide 7181 by 809, we get 8 and a remainder of 709.
Use 8 as the next digit of our solution. 
Result so far: 18.0
The remainder is 709 after subtracting 6472 from 7181.
Bring next digit (3) of the dividend behind the 709 and repeat the process: 7093 / 809

Going ahead to step 6:
The number 809 fits into 7093 8 times, leaving a remainder of 621.
Put 8 as the next digit of the answer. 
Result so far: 188.0
The remainder is 621 after subtracting 6472 from 7093.
Fetch the next digit (8) from the dividend, attach it to 621 and continue: 6218 / 809

On to step 7:
If we divide 6218 by 809, we get 7 and a remainder of 555.
Use 7 as the next digit of our solution. 
Result so far: 1887.0
If we subtract 5663 from 6218, we get 555.
Bring next digit (5) of the dividend behind the 555 and repeat the process: 5555 / 809

Advancing to step 8:
If we divide 5555 by 809, we get 6 and a remainder of 701.
Record the quotient 6 as the next digit in the result. 
Result so far: 18876.0
Subtracting 4854 from 5555 leaves us with 701.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7010, and continue the process.

Let's proceed to step 9:
7010 divided by 809 is 8 with a remainder of 538.
Record the quotient 8 as the next digit in the result. 
Result so far: 18876.8
If we take 6472 away from 7010, we end up with 538.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5380, and continue the process.

On to step 10:
5380 divided by 809 is 6 with a remainder of 526.
Record the quotient 6 as the next digit in the result. 
Result so far: 18876.86
Deduct 4854 from 5380 and we're left with 526.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5260, and continue the process.

Going ahead to step 11:
5260 divided by 809 is 6 with a remainder of 406.
Record the quotient 6 as the next digit in the result. 
Result so far: 18876.866
Deduct 4854 from 5260 and we're left 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.

The final outcome is 18876.866, with a leftover of 0.0406.