We divide 438170 by 23
We want to figure out the number of times 438170 can be divided by 23.

Advancing to step 1:
The number 23 fits into 4 0 times, leaving a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Bring next digit (3) of the dividend behind the 4 and repeat the process: 43 / 23

Step 2:
23 can be fit into 43 1 times, resulting in a remainder of 20.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we subtract 23 from 43, we get 20.
Fetch the next digit (8) from the dividend, attach it to 20 and continue: 208 / 23

On to step 3:
When dividing 208 by 23, we get 9 with a remainder of 1.
Put 9 as the next digit of the answer. 
Result so far: 19.0
If we subtract 207 from 208, we get 1.
Grab the next digit (1) from the dividend, add it to 1, then carry on: 11 / 23

Step 4:
11 divided by 23 is 0 with a remainder of 11.
Put 0 as the next digit of the answer. 
Result so far: 190.0
Subtracting 0 from 11 leaves us with 11.
Include the next digit (7) from the dividend after 11, then repeat: 117 / 23

On to step 5:
117 divided by 23 is 5 with a remainder of 2.
Use 5 as the next digit of our solution. 
Result so far: 1905.0
If we subtract 115 from 117, we get 2.
Include the next digit (0) from the dividend after 2, then repeat: 20 / 23

Going ahead to step 6:
The number 23 fits into 20 0 times, leaving a remainder of 20.
Write down 0 as next digit of the result. 
Result so far: 19050.0
The remainder is 20 after subtracting 0 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 7:
23 can be fit into 200 8 times, resulting in a remainder of 16.
The next digit of our result is 8. 
Result so far: 19050.8
Subtract 184 from 200 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 8:
The number 23 fits into 160 6 times, leaving a remainder of 22.
The number 6 becomes the next digit in our result. 
Result so far: 19050.86
Subtracting 138 from 160 leaves us with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Let's proceed to step 9:
When dividing 220 by 23, we get 9 with a remainder of 13.
Record the quotient 9 as the next digit in the result. 
Result so far: 19050.869
Deduct 207 from 220 and we're left with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Moving on to step 10:
When dividing 130 by 23, we get 5 with a remainder of 15.
Record the quotient 5 as the next digit in the result. 
Result so far: 19050.8695
Subtract 115 from 130 to get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

On to step 11:
150 divided by 23 is 6 with a remainder of 12.
Use 6 as the next digit of our solution. 
Result so far: 19050.86956
If we take 138 away from 150, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 12:
120 divided by 23 is 5 with a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 19050.869565
The remainder is 5 after subtracting 115 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 13:
The number 23 fits into 50 2 times, leaving a remainder of 4.
Record the quotient 2 as the next digit in the result. 
Result so far: 19050.8695652
Subtracting 46 from 50 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 14:
If we divide 40 by 23, we get 1 and a remainder of 17.
Write down 1 as next digit of the result. 
Result so far: 19050.86956521
Subtract 23 from 40 to get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Our division results in 19050.86956521 with a remaining 1.7e-08.