How to use glob search with the wildcard in command find?

How to use glob search with the wildcard in command find?
I want to find any file its names begin with "readme" string using command find. Why the following command cannot work?
$find /usr/share/doc -name readme*
However, the following commands can work?
$find /usr/share/doc -name readme\* or
$find /usr/share/doc -name readme'*'
I want to know: After using the “\” or ' ', why the wildcard do not become a character "*"?(still a metacharacter).
Another question:
I want to find any file its names begin with "readme*" string using the command find.What command should I use?

I want to know: After using the “\” or ' ', why the
wildcard do not become a character "*"?(still a
metacharacter). The backslash is known as an escape character. It means 'use the character value of the next character, not the special meaning' It is used in a lot of places such as command line, global regular expression patterns, and editors such as vi.
In a typical shell, the splat (*) expands to all file names before passing the file names to the current command. So a \* sequence tells the shell to pass a *, not a list of file names, to the command.
Demo - OpenSuSE Linux 10.3
- I have a bunch of files. Let's list those that end in grid. Create one called *grid, and list again
pops@fuzzyVM:~/pops> ls
a b c startgrid stopgrid
pops@fuzzyVM:~> ls *grid
startgrid stopgrid
pops@fuzzyVM:~> ls \*grid
ls: cannot access *grid: No such file or directory
pops@fuzzyVM:~> touch '*grid'
pops@fuzzyVM:~/pops> ls
a b c *grid startgrid stopgrid
pops@fuzzyVM:~/pops> ls *grid
*grid startgrid stopgrid
pops@fuzzyVM:~/pops> ls \*grid
*grid
pops@fuzzyVM:~/pops>In the above, how would I remove the file *grid, and only that file?
Another question:
I want to find any file its names begin with
"readme*" string using the command find.What command
should I use?What were the results of the two versions you tried? And why?

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