Here's how to think about it:
* Jupiter's diameter: 142,984 kilometers
* Sun's diameter: 1,392,684 kilometers
To figure out how many Jupiters would fit across the Sun, divide the Sun's diameter by Jupiter's diameter:
1,392,684 km / 142,984 km = approximately 9.73
So, you could fit almost 10 Jupiters side-by-side across the Sun.
But remember, the Sun is a sphere, so fitting Jupiters inside would be much more complex.