Here's how a basic Solidity operation works under the hood. Take a simple expression like uint c = a + b — it seems straightforward when you write it, but the compiler translates it into something quite different at the bytecode level.

Once compiled, you get opcodes that look roughly like this:
PUSH1 a
PUSH1 b
ADD

That's the EVM speaking. Each instruction gets executed one after another. The client processes every single opcode sequentially, pushing values onto the stack, performing operations, and moving to the next instruction. No shortcuts, no magic — just a deterministic series of steps that transforms your high-level code into machine-executable operations.

This is why gas optimization matters so much in blockchain development. Each opcode has a cost, and understanding what bytecode gets generated from your Solidity is the difference between efficient and wasteful smart contracts.