14123 ÷ 5 = 2824 R3
We're going to perform division on 14123 with 5 as the divisor.

Step 1:
5 goes into 1 0 times with a remainder of 1.
Write down 0 as next digit of of the result. 
Result so far: 0
Subtract 0 from 1 to get 1.
Bring next digit (4) of the dividend behind the 1 and repeat the process: 14 / 5

Step 2:
5 goes into 14 2 times with a remainder of 4.
Write down 2 as next digit of of the result. 
Result so far: 2
Subtract 10 from 14 to get 4.
Bring next digit (1) of the dividend behind the 4 and repeat the process: 41 / 5

Step 3:
5 goes into 41 8 times with a remainder of 1.
Write down 8 as next digit of of the result. 
Result so far: 28
Subtract 40 from 41 to get 1.
Bring next digit (2) of the dividend behind the 1 and repeat the process: 12 / 5

Step 4:
5 goes into 12 2 times with a remainder of 2.
Write down 2 as next digit of of the result. 
Result so far: 282
Subtract 10 from 12 to get 2.
Bring next digit (3) of the dividend behind the 2 and repeat the process: 23 / 5

Step 5:
5 goes into 23 4 times with a remainder of 3.
Write down 4 as next digit of of the result. 
Result so far: 2824
Subtract 20 from 23 to get 3.

The final result is 2824 with a remainder of 3.