421324 ÷ 23 
We're looking to find how many times 23 goes into 421324.

Advancing to step 1:
23 goes into 4 0 times with a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Bring next digit (2) of the dividend behind the 4 and repeat the process: 42 / 23

Advancing to step 2:
When dividing 42 by 23, we get 1 with a remainder of 19.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 23 from 42 leaves us with 19.
Append the next digit (1) from the dividend to 19 and continue with: 191 / 23

Going ahead to step 3:
If we divide 191 by 23, we get 8 and a remainder of 7.
Put 8 as the next digit of the answer. 
Result so far: 18.0
Subtract 184 from 191 to get 7.
Bring next digit (3) of the dividend behind the 7 and repeat the process: 73 / 23

Step 4:
If we divide 73 by 23, we get 3 and a remainder of 4.
The next digit of our result is 3. 
Result so far: 183.0
If we take 69 away from 73, we end up with 4.
Grab the next digit (2) from the dividend, add it to 4, then carry on: 42 / 23

Going ahead to step 5:
42 divided by 23 is 1 with a remainder of 19.
The next digit of our result is 1. 
Result so far: 1831.0
The remainder is 19 after subtracting 23 from 42.
Include the next digit (4) from the dividend after 19, then repeat: 194 / 23

Let's proceed to step 6:
When dividing 194 by 23, we get 8 with a remainder of 10.
Use 8 as the next digit of our solution. 
Result so far: 18318.0
Subtracting 184 from 194 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 7:
If we divide 100 by 23, we get 4 and a remainder of 8.
Record the quotient 4 as the next digit in the result. 
Result so far: 18318.4
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.

Moving on to step 8:
When dividing 80 by 23, we get 3 with a remainder of 11.
Use 3 as the next digit of our solution. 
Result so far: 18318.43
Deduct 69 from 80 and we're left with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Going ahead to step 9:
23 goes into 110 4 times with a remainder of 18.
Write down 4 as next digit of the result. 
Result so far: 18318.434
Subtract 92 from 110 to get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Going ahead to step 10:
The number 23 fits into 180 7 times, leaving a remainder of 19.
Write down 7 as next digit of the result. 
Result so far: 18318.4347
If we subtract 161 from 180, we get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Step 11:
If we divide 190 by 23, we get 8 and a remainder of 6.
The next digit of our result is 8. 
Result so far: 18318.43478
If we subtract 184 from 190, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 12:
If we divide 60 by 23, we get 2 and a remainder of 14.
Record the quotient 2 as the next digit in the result. 
Result so far: 18318.434782
Subtract 46 from 60 to get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Let's proceed to step 13:
If we divide 140 by 23, we get 6 and a remainder of 2.
Use 6 as the next digit of our solution. 
Result so far: 18318.4347826
If we take 138 away from 140, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 14:
The number 23 fits into 20 0 times, leaving a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 18318.4347826
If we subtract 0 from 20, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

The quotient of the division is 18318.4347826, and the remainder is 2e-08.