# Find $b$ by $a$

$\begin{array}{cccc} & \color{#D61F06}A & \color{#D61F06}A & \color{#D61F06}A \\ \times & & & \color{#D61F06}A \\ \hline 3 & \color{#3D99F6}B & \color{#3D99F6}B & \color{#D61F06}A \end{array}$

$\color{#D61F06}A$ and $\color{#3D99F6}B$ are digits. What is ${\color{#3D99F6}B}?$

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