811826 divided by 15 
We want to figure out the number of times 811826 can be divided by 15.

Going ahead to step 1:
The number 15 fits into 8 0 times, leaving a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Fetch the next digit (1) from the dividend, attach it to 8 and continue: 81 / 15

Let's proceed to step 2:
15 goes into 81 5 times with a remainder of 6.
Write down 5 as next digit of the result. 
Result so far: 5.0
Deduct 75 from 81 and we're left with 6.
Bring next digit (1) of the dividend behind the 6 and repeat the process: 61 / 15

Advancing to step 3:
15 goes into 61 4 times with a remainder of 1.
Use 4 as the next digit of our solution. 
Result so far: 54.0
The remainder is 1 after subtracting 60 from 61.
Take the next digit (8) from the dividend and append it to 1, then repeat: 18 / 15

On to step 4:
When dividing 18 by 15, we get 1 with a remainder of 3.
Use 1 as the next digit of our solution. 
Result so far: 541.0
Deduct 15 from 18 and we're left with 3.
Append the next digit (2) from the dividend to 3 and continue with: 32 / 15

Step 5:
15 can be fit into 32 2 times, resulting in a remainder of 2.
Use 2 as the next digit of our solution. 
Result so far: 5412.0
The remainder is 2 after subtracting 30 from 32.
Take the next digit (6) from the dividend and append it to 2, then repeat: 26 / 15

Moving on to step 6:
The number 15 fits into 26 1 times, leaving a remainder of 11.
Record the quotient 1 as the next digit in the result. 
Result so far: 54121.0
Deduct 15 from 26 and we're left with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Going ahead to step 7:
The number 15 fits into 110 7 times, leaving a remainder of 5.
Put 7 as the next digit of the answer. 
Result so far: 54121.7
Deduct 105 from 110 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.

Advancing to step 8:
50 divided by 15 is 3 with a remainder of 5.
Record the quotient 3 as the next digit in the result. 
Result so far: 54121.73
Deduct 45 from 50 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.

Advancing to step 9:
When dividing 50 by 15, we get 3 with a remainder of 5.
Write down 3 as next digit of the result. 
Result so far: 54121.733
If we take 45 away from 50, we end up 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.

The quotient of the division is 54121.733, and the remainder is 0.0005.