ELI5: How many numbers exist?

I know there’s infinity but I’m wondering if it means there’s an infinite number for EVERY other number. <br><br>Ex: <br><br>If 1 exists, then 1,000,000,000 exists. <br><br>If 2 exists, then 2,000,000,000 exists. <br><br>I just can’t wrap my head around this.