We're dividing 402645 by 23 
We're looking to find how many times 23 goes into 402645.

Let's proceed to step 1:
When dividing 4 by 23, we get 0 with a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Take the next digit (0) from the dividend and append it to 4, then repeat: 40 / 23

On to step 2:
The number 23 fits into 40 1 times, leaving a remainder of 17.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 23 from 40 leaves us with 17.
Take the next digit (2) from the dividend and append it to 17, then repeat: 172 / 23

Going ahead to step 3:
23 can be fit into 172 7 times, resulting in a remainder of 11.
Write down 7 as next digit of the result. 
Result so far: 17.0
The remainder is 11 after subtracting 161 from 172.
Take the next digit (6) from the dividend and append it to 11, then repeat: 116 / 23

Step 4:
23 goes into 116 5 times with a remainder of 1.
Write down 5 as next digit of the result. 
Result so far: 175.0
If we subtract 115 from 116, we get 1.
Bring next digit (4) of the dividend behind the 1 and repeat the process: 14 / 23

Let's proceed to step 5:
The number 23 fits into 14 0 times, leaving a remainder of 14.
The number 0 becomes the next digit in our result. 
Result so far: 1750.0
If we subtract 0 from 14, we get 14.
Append the next digit (5) from the dividend to 14 and continue with: 145 / 23

Going ahead to step 6:
145 divided by 23 is 6 with a remainder of 7.
The next digit of our result is 6. 
Result so far: 17506.0
If we subtract 138 from 145, 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 7:
If we divide 70 by 23, we get 3 and a remainder of 1.
The next digit of our result is 3. 
Result so far: 17506.3
If we take 69 away from 70, we end up 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.

Going ahead to step 8:
If we divide 10 by 23, we get 0 and a remainder of 10.
The next digit of our result is 0. 
Result so far: 17506.3
Subtracting 0 from 10 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 9:
When dividing 100 by 23, we get 4 with a remainder of 8.
The number 4 becomes the next digit in our result. 
Result so far: 17506.304
Deduct 92 from 100 and we're left 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.

Let's proceed to step 10:
When dividing 80 by 23, we get 3 with a remainder of 11.
Record the quotient 3 as the next digit in the result. 
Result so far: 17506.3043
The remainder is 11 after subtracting 69 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Step 11:
When dividing 110 by 23, we get 4 with a remainder of 18.
Record the quotient 4 as the next digit in the result. 
Result so far: 17506.30434
The remainder is 18 after subtracting 92 from 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Step 12:
23 can be fit into 180 7 times, resulting in a remainder of 19.
Put 7 as the next digit of the answer. 
Result so far: 17506.304347
Subtracting 161 from 180 leaves us with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

On to step 13:
23 can be fit into 190 8 times, resulting in a remainder of 6.
Use 8 as the next digit of our solution. 
Result so far: 17506.3043478
If we take 184 away from 190, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 14:
If we divide 60 by 23, we get 2 and a remainder of 14.
The next digit of our result is 2. 
Result so far: 17506.30434782
The remainder is 14 after subtracting 46 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

The quotient of the division is 17506.30434782, and the remainder is 1.4e-08.