Finding product-market fit first, then systemizing everything you can. Automate, delegate, repeat. It's a bit like growing a plant. You need the right environment first, then it's all about pruning and watering.
The easiest way to scale a business is by leveraging digital marketing strategies, optimizing operational processes, expanding distribution channels, fostering strategic partnerships, and prioritizing customer satisfaction. Implementing effective growth tactics while maintaining a focus on efficiency and innovation can drive rapid and sustainable business expansion.
Since you said scale I'm assuming your business is already established. Then the easiest way to scale is to pay for marketing 😛
Though that depends on how much you are willing to pay!