We look at the division of 23912942 by 5 
We want to figure out the number of times 23912942 can be divided by 5.

Let's proceed to step 1:
When dividing 2 by 5, we get 0 with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Include the next digit (3) from the dividend after 2, then repeat: 23 / 5

Going ahead to step 2:
If we divide 23 by 5, we get 4 and a remainder of 3.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
The remainder is 3 after subtracting 20 from 23.
Include the next digit (9) from the dividend after 3, then repeat: 39 / 5

Moving on to step 3:
5 goes into 39 7 times with a remainder of 4.
The number 7 becomes the next digit in our result. 
Result so far: 47.0
Subtracting 35 from 39 leaves us with 4.
Bring next digit (1) of the dividend behind the 4 and repeat the process: 41 / 5

Let's proceed to step 4:
5 can be fit into 41 8 times, resulting in a remainder of 1.
Record the quotient 8 as the next digit in the result. 
Result so far: 478.0
Subtract 40 from 41 to get 1.
Grab the next digit (2) from the dividend, add it to 1, then carry on: 12 / 5

Moving on to step 5:
The number 5 fits into 12 2 times, leaving a remainder of 2.
The next digit of our result is 2. 
Result so far: 4782.0
The remainder is 2 after subtracting 10 from 12.
Take the next digit (9) from the dividend and append it to 2, then repeat: 29 / 5

On to step 6:
When dividing 29 by 5, we get 5 with a remainder of 4.
The number 5 becomes the next digit in our result. 
Result so far: 47825.0
If we take 25 away from 29, we end up with 4.
Grab the next digit (4) from the dividend, add it to 4, then carry on: 44 / 5

Step 7:
The number 5 fits into 44 8 times, leaving a remainder of 4.
The next digit of our result is 8. 
Result so far: 478258.0
The remainder is 4 after subtracting 40 from 44.
Take the next digit (2) from the dividend and append it to 4, then repeat: 42 / 5

Step 8:
5 can be fit into 42 8 times, resulting in a remainder of 2.
Put 8 as the next digit of the answer. 
Result so far: 4782588.0
If we subtract 40 from 42, we get 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 9:
20 divided by 5 is 4 with a remainder of 0.
Use 4 as the next digit of our solution. 
Result so far: 4782588.4
The remainder is 0 after subtracting 20 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 10:
5 can be fit into 0 0 times, resulting in a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 4782588.4
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 11:
The number 5 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 4782588.4
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 4782588.4 with a remaining 0.0.