We're dividing 407858 by 23 
We're looking to find how many times 23 goes into 407858.

Advancing to step 1:
4 divided by 23 is 0 with a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Grab the next digit (0) from the dividend, add it to 4, then carry on: 40 / 23

Going ahead to step 2:
If we divide 40 by 23, we get 1 and a remainder of 17.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 23 from 40 and we're left with 17.
Append the next digit (7) from the dividend to 17 and continue with: 177 / 23

Let's proceed to step 3:
177 divided by 23 is 7 with a remainder of 16.
Put 7 as the next digit of the answer. 
Result so far: 17.0
Deduct 161 from 177 and we're left with 16.
Append the next digit (8) from the dividend to 16 and continue with: 168 / 23

Moving on to step 4:
The number 23 fits into 168 7 times, leaving a remainder of 7.
Write down 7 as next digit of the result. 
Result so far: 177.0
Deduct 161 from 168 and we're left with 7.
Take the next digit (5) from the dividend and append it to 7, then repeat: 75 / 23

Moving on to step 5:
When dividing 75 by 23, we get 3 with a remainder of 6.
The next digit of our result is 3. 
Result so far: 1773.0
Subtracting 69 from 75 leaves us with 6.
Take the next digit (8) from the dividend and append it to 6, then repeat: 68 / 23

Advancing to step 6:
The number 23 fits into 68 2 times, leaving a remainder of 22.
Put 2 as the next digit of the answer. 
Result so far: 17732.0
If we take 46 away from 68, we end up 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.

Advancing to step 7:
The number 23 fits into 220 9 times, leaving a remainder of 13.
The number 9 becomes the next digit in our result. 
Result so far: 17732.9
The remainder is 13 after subtracting 207 from 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Step 8:
If we divide 130 by 23, we get 5 and a remainder of 15.
The next digit of our result is 5. 
Result so far: 17732.95
The remainder is 15 after subtracting 115 from 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Let's proceed to step 9:
23 goes into 150 6 times with a remainder of 12.
The number 6 becomes the next digit in our result. 
Result so far: 17732.956
Subtract 138 from 150 to 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 10:
If we divide 120 by 23, we get 5 and a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 17732.9565
If we take 115 away from 120, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 11:
50 divided by 23 is 2 with a remainder of 4.
Write down 2 as next digit of the result. 
Result so far: 17732.95652
Deduct 46 from 50 and we're left 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.

On to step 12:
The number 23 fits into 40 1 times, leaving a remainder of 17.
The number 1 becomes the next digit in our result. 
Result so far: 17732.956521
If we take 23 away from 40, we end up 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.

Going ahead to step 13:
If we divide 170 by 23, we get 7 and a remainder of 9.
Use 7 as the next digit of our solution. 
Result so far: 17732.9565217
Subtracting 161 from 170 leaves us with 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 14:
23 can be fit into 90 3 times, resulting in a remainder of 21.
The next digit of our result is 3. 
Result so far: 17732.95652173
Subtracting 69 from 90 leaves us 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.

In conclusion, the division gives 17732.95652173 with a balance of 2.1e-08.