Let's divide 124643 by 15
Let's see how many times 15 fits into 124643.

On to step 1:
1 divided by 15 is 0 with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Include the next digit (2) from the dividend after 1, then repeat: 12 / 15

Advancing to step 2:
12 divided by 15 is 0 with a remainder of 12.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 12, we end up with 12.
Grab the next digit (4) from the dividend, add it to 12, then carry on: 124 / 15

Going ahead to step 3:
124 divided by 15 is 8 with a remainder of 4.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
If we subtract 120 from 124, we get 4.
Take the next digit (6) from the dividend and append it to 4, then repeat: 46 / 15

On to step 4:
If we divide 46 by 15, we get 3 and a remainder of 1.
The number 3 becomes the next digit in our result. 
Result so far: 83.0
Subtract 45 from 46 to get 1.
Bring next digit (4) of the dividend behind the 1 and repeat the process: 14 / 15

Step 5:
The number 15 fits into 14 0 times, leaving a remainder of 14.
Record the quotient 0 as the next digit in the result. 
Result so far: 830.0
If we take 0 away from 14, we end up with 14.
Bring next digit (3) of the dividend behind the 14 and repeat the process: 143 / 15

Moving on to step 6:
15 goes into 143 9 times with a remainder of 8.
The next digit of our result is 9. 
Result so far: 8309.0
Subtracting 135 from 143 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 7:
When dividing 80 by 15, we get 5 with a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 8309.5
The remainder is 5 after subtracting 75 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 8:
The number 15 fits into 50 3 times, leaving a remainder of 5.
Write down 3 as next digit of the result. 
Result so far: 8309.53
Subtract 45 from 50 to get 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:
15 goes into 50 3 times with a remainder of 5.
Write down 3 as next digit of the result. 
Result so far: 8309.533
Subtract 45 from 50 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Our division results in 8309.533 with a remaining 0.0005.