So, yeah, i'm stumped with my homework.

Sun - 2.000 x 1030 kg(mass) - 696 x 106 m(Star Radius) - 0(orbital radius)
Jupiter - 1.901 x 1027 kg(mass) - 71.398 x 106 m(Planet radius) - 778.3 x 109 m(Orbital radius)

G = Universal Gravitational Constant
M = mass
R = Radius

FG = G * m1 * m2 / r^2

What is the gravitational force between the Sun and Jupiter?
a. 4.19 x 1023 N
b. 3.26 x 1035 N
C. 4.97 x 1031 N
d. 5.24 x 1029 N

What is the acceleration of Jupiter produced by the gravitational force?
A. 5.38 x 1011 m/s2
b. 6.02 x 1014 m/s2
c. 2.20 x 10-4 m/s2
d. 2.10 x 10-7 m/s2

What is the acceleration of the Sun as a result of this gravitational force?
a. 5.38 x 1011 m/s2
b. 6.02 x 1014 m/s2
c. 2.20 x 10-4 m/s2
d. 2.10 x 10-7 m/s2

FG = G * m1 * m2 / r^2

Now i'm confused, what do I do? You don't need to answer the questions if you don't want, just sort of walk me through it - I'm confused. :(

EDIT:

My work so far:
FG = G * (2.000 x 1030) * (1.901 x 1027) / r^2
FG = G * 2060 * 1952.327 / r^2
FG = G * 2060 * 1952.327 / (778.3 x 109)^2
FG = G * 2060 * 1952.327 / (84834.7)^2
FG = G * 2060 * 1952.327 / 7196926324.09

My work so far, i'm stuck now: What the fuck is G?!