Let's divide 623865 by 15
We want to divide 623865 by 15.

Step 1:
15 can be fit into 6 0 times, resulting in a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Take the next digit (2) from the dividend and append it to 6, then repeat: 62 / 15

Moving on to step 2:
15 can be fit into 62 4 times, resulting in a remainder of 2.
Put 4 as the next digit of the answer. 
Result so far: 4.0
If we subtract 60 from 62, we get 2.
Grab the next digit (3) from the dividend, add it to 2, then carry on: 23 / 15

Moving on to step 3:
When dividing 23 by 15, we get 1 with a remainder of 8.
Write down 1 as next digit of the result. 
Result so far: 41.0
If we take 15 away from 23, we end up with 8.
Fetch the next digit (8) from the dividend, attach it to 8 and continue: 88 / 15

Going ahead to step 4:
When dividing 88 by 15, we get 5 with a remainder of 13.
Use 5 as the next digit of our solution. 
Result so far: 415.0
The remainder is 13 after subtracting 75 from 88.
Bring next digit (6) of the dividend behind the 13 and repeat the process: 136 / 15

Step 5:
15 can be fit into 136 9 times, resulting in a remainder of 1.
Use 9 as the next digit of our solution. 
Result so far: 4159.0
Subtract 135 from 136 to get 1.
Grab the next digit (5) from the dividend, add it to 1, then carry on: 15 / 15

Moving on to step 6:
When dividing 15 by 15, we get 1 with a remainder of 0.
The number 1 becomes the next digit in our result. 
Result so far: 41591.0
If we take 15 away from 15, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 7:
15 can be fit into 0 0 times, resulting in a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 41591.0
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 8:
When dividing 0 by 15, we get 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 41591.0
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The quotient of the division is 41591.0, and the remainder is 0.0.