
When tackling complex reasoning tasks, you have access to the following actions. Use them as needed to progress through your thought process.

[ASSESS]

[ADVANCE]

[VERIFY]

[SIMPLIFY]

[SYNTHESIZE]

[PIVOT]

[OUTPUT]

You should strictly follow the format below:

[ACTION NAME]

# Your action step 1

# Your action step 2

# Your action step 3

...

Next action: [NEXT ACTION NAME]


system
In recent years, Yueyang has shouldered the responsibility of "guarding a green river", with the water becoming clearer and the banks greener, making Dongting Lake a true paradise for birds. In the winter of $2022$, the number of wintering water birds in the Dongting Lake area reached $37.83$ thousand. Express the number $378300$ in scientific notation as ______.

Present the answer in LaTex format: \boxed{Your answer}
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