201515 ÷ 23 
We want to divide 201515 by 23.

Step 1:
If we divide 2 by 23, we get 0 and a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Append the next digit (0) from the dividend to 2 and continue with: 20 / 23

Step 2:
20 divided by 23 is 0 with a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 20, we get 20.
Take the next digit (1) from the dividend and append it to 20, then repeat: 201 / 23

Let's proceed to step 3:
23 can be fit into 201 8 times, resulting in a remainder of 17.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
Subtracting 184 from 201 leaves us with 17.
Take the next digit (5) from the dividend and append it to 17, then repeat: 175 / 23

On to step 4:
When dividing 175 by 23, we get 7 with a remainder of 14.
Use 7 as the next digit of our solution. 
Result so far: 87.0
If we subtract 161 from 175, we get 14.
Include the next digit (1) from the dividend after 14, then repeat: 141 / 23

Advancing to step 5:
23 goes into 141 6 times with a remainder of 3.
Record the quotient 6 as the next digit in the result. 
Result so far: 876.0
Deduct 138 from 141 and we're left with 3.
Grab the next digit (5) from the dividend, add it to 3, then carry on: 35 / 23

Step 6:
If we divide 35 by 23, we get 1 and a remainder of 12.
Record the quotient 1 as the next digit in the result. 
Result so far: 8761.0
If we subtract 23 from 35, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 7:
If we divide 120 by 23, we get 5 and a remainder of 5.
The number 5 becomes the next digit in our result. 
Result so far: 8761.5
If we subtract 115 from 120, we 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.

Let's proceed to step 8:
If we divide 50 by 23, we get 2 and a remainder of 4.
Put 2 as the next digit of the answer. 
Result so far: 8761.52
Subtract 46 from 50 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 9:
If we divide 40 by 23, we get 1 and a remainder of 17.
Put 1 as the next digit of the answer. 
Result so far: 8761.521
Deduct 23 from 40 and we're left with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Advancing to step 10:
23 can be fit into 170 7 times, resulting in a remainder of 9.
The number 7 becomes the next digit in our result. 
Result so far: 8761.5217
If we subtract 161 from 170, we get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Going ahead to step 11:
23 can be fit into 90 3 times, resulting in a remainder of 21.
Use 3 as the next digit of our solution. 
Result so far: 8761.52173
The remainder is 21 after subtracting 69 from 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Moving on to step 12:
23 goes into 210 9 times with a remainder of 3.
Put 9 as the next digit of the answer. 
Result so far: 8761.521739
If we subtract 207 from 210, we get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Advancing to step 13:
23 can be fit into 30 1 times, resulting in a remainder of 7.
Record the quotient 1 as the next digit in the result. 
Result so far: 8761.5217391
Subtract 23 from 30 to get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Step 14:
23 goes into 70 3 times with a remainder of 1.
The next digit of our result is 3. 
Result so far: 8761.52173913
Deduct 69 from 70 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

The final result is 8761.52173913 with a remainder of 1e-09.