manage, do, handle, deal with
辦 centers on taking charge of a task: managing, handling, or dealing with something actively. The idea of 'doing' is the practical execution of that management.
辦 combines 辡 (which likely represents two sides or a dispute) with 力 (strength, effort), suggesting the idea of using effort to manage or settle matters.
The outer 辡 looks like two 辛 (bitter, hardship) facing each other, and inside is 力 (power). Picture using your strength to manage and handle a difficult situation between two opposing sides.
For ハン, imagine a manager named Han who handles every task with a strong hand: Han -> ハン, and his power 力 manages the two-sided 辡 challenge.