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# Multiply by 1-digit numbers with standard algorithm

## Problem

Don starts to use the standard algorithm to solve 418, times, 5. His work is shown below.
\begin{aligned} {\overset{}4}\overset{\blueD{y}}1\overset{}8&\\ \underline{{} \times \phantom{~~~~} 5}&\\ 0& \end{aligned}
What number should Don replace start color #11accd, y, end color #11accd with?
Stuck?
Stuck?