We divide 645489 by 23
We want to divide 645489 by 23.

Going ahead to step 1:
23 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
If we subtract 0 from 6, we get 6.
Append the next digit (4) from the dividend to 6 and continue with: 64 / 23

Going ahead to step 2:
64 divided by 23 is 2 with a remainder of 18.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Subtract 46 from 64 to get 18.
Grab the next digit (5) from the dividend, add it to 18, then carry on: 185 / 23

Let's proceed to step 3:
23 can be fit into 185 8 times, resulting in a remainder of 1.
Write down 8 as next digit of the result. 
Result so far: 28.0
If we take 184 away from 185, we end up with 1.
Grab the next digit (4) from the dividend, add it to 1, then carry on: 14 / 23

Moving on to step 4:
23 goes into 14 0 times with a remainder of 14.
The number 0 becomes the next digit in our result. 
Result so far: 280.0
Subtract 0 from 14 to get 14.
Include the next digit (8) from the dividend after 14, then repeat: 148 / 23

Moving on to step 5:
The number 23 fits into 148 6 times, leaving a remainder of 10.
Write down 6 as next digit of the result. 
Result so far: 2806.0
The remainder is 10 after subtracting 138 from 148.
Fetch the next digit (9) from the dividend, attach it to 10 and continue: 109 / 23

Advancing to step 6:
23 can be fit into 109 4 times, resulting in a remainder of 17.
Use 4 as the next digit of our solution. 
Result so far: 28064.0
Deduct 92 from 109 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 7:
If we divide 170 by 23, we get 7 and a remainder of 9.
The number 7 becomes the next digit in our result. 
Result so far: 28064.7
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.

On to step 8:
90 divided by 23 is 3 with a remainder of 21.
The number 3 becomes the next digit in our result. 
Result so far: 28064.73
If we take 69 away from 90, we end up with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Advancing to step 9:
When dividing 210 by 23, we get 9 with a remainder of 3.
The number 9 becomes the next digit in our result. 
Result so far: 28064.739
Subtract 207 from 210 to 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.

Step 10:
If we divide 30 by 23, we get 1 and a remainder of 7.
Put 1 as the next digit of the answer. 
Result so far: 28064.7391
If we subtract 23 from 30, we 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.

On to step 11:
When dividing 70 by 23, we get 3 with a remainder of 1.
Put 3 as the next digit of the answer. 
Result so far: 28064.73913
Subtracting 69 from 70 leaves us 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.

Moving on to step 12:
The number 23 fits into 10 0 times, leaving a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 28064.73913
Subtract 0 from 10 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 13:
23 can be fit into 100 4 times, resulting in a remainder of 8.
The number 4 becomes the next digit in our result. 
Result so far: 28064.7391304
If we subtract 92 from 100, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 14:
23 goes into 80 3 times with a remainder of 11.
Write down 3 as next digit of the result. 
Result so far: 28064.73913043
Subtract 69 from 80 to get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

In conclusion, the division gives 28064.73913043 with a balance of 1.1e-08.