In most programming languages, you can concatenate a string with an integer by using the string concatenation operator '+'.

Here's an example in JavaScript: 

let str = "The value of i is: ";
let i = 5;
let result = str + i;
console.log(result);

In this example, we define a string variable str that holds the string "The value of i is: ". We also define an integer variable i that holds the value 5.

To concatenate the string with the integer, we use the + operator to join the two values together. Since i is an integer and str is a string, the integer value will automatically be converted to a string and concatenated with the original string.

Finally, we store the concatenated string in a new variable called result and log it to the console. The output of this program will be "The value of i is: 5".

Remember that the concatenation operator may vary slightly depending on the programming language you are using, but the principle remains the same.