123953 ÷ 15 
We want to divide 123953 by 15.

Going ahead to step 1:
15 can be fit into 1 0 times, resulting in a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Fetch the next digit (2) from the dividend, attach it to 1 and continue: 12 / 15

Going ahead to step 2:
The number 15 fits into 12 0 times, leaving a remainder of 12.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 12, we get 12.
Grab the next digit (3) from the dividend, add it to 12, then carry on: 123 / 15

Advancing to step 3:
If we divide 123 by 15, we get 8 and a remainder of 3.
Use 8 as the next digit of our solution. 
Result so far: 8.0
Deduct 120 from 123 and we're left with 3.
Include the next digit (9) from the dividend after 3, then repeat: 39 / 15

Going ahead to step 4:
15 can be fit into 39 2 times, resulting in a remainder of 9.
Write down 2 as next digit of the result. 
Result so far: 82.0
Subtract 30 from 39 to get 9.
Grab the next digit (5) from the dividend, add it to 9, then carry on: 95 / 15

Going ahead to step 5:
The number 15 fits into 95 6 times, leaving a remainder of 5.
Put 6 as the next digit of the answer. 
Result so far: 826.0
The remainder is 5 after subtracting 90 from 95.
Append the next digit (3) from the dividend to 5 and continue with: 53 / 15

Let's proceed to step 6:
If we divide 53 by 15, we get 3 and a remainder of 8.
Record the quotient 3 as the next digit in the result. 
Result so far: 8263.0
Subtracting 45 from 53 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.

Advancing to step 7:
When dividing 80 by 15, we get 5 with a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 8263.5
Deduct 75 from 80 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:
When dividing 50 by 15, we get 3 with a remainder of 5.
The next digit of our result is 3. 
Result so far: 8263.53
The remainder is 5 after subtracting 45 from 50.
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 9:
When dividing 50 by 15, we get 3 with a remainder of 5.
The next digit of our result is 3. 
Result so far: 8263.533
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.

After the division, we end up with 8263.533 and a remainder of 0.0005.