I was reading about $\pi$ converted into other base systems. We all know $\pi$ in base $10$:
$$\pi_{10} = 3.1415926535897932384626433(...)$$
but how has this been converted into, say, base $11$, where it reads:
$$\pi_{11} = 3.16150702865A48233(...)$$
I cannot get the process.
I know what base $11$ is but I thought the conversion were like $digit by digit". Yet just from the beginning something changes:
$3.14$ becomes $3.16$, but both $4$ in base eleven is still $4$.
How then has this conversion been made?