Substitute to Find the Value of the Expression $\mathrm { d }$

Substitute to find the value of the expression.
-A plane flies at 649 miles per hour. The time, in hours, for the plane to travel a distance of $\mathrm { d }$ miles is $\frac { \mathrm { d } } { 649 }$ . How long will it take for the plane to travel 3245 miles?

A) $5 \mathrm { hr }$
B) $0.20 \mathrm { hr }$
C) $8 \mathrm { hr }$
D) $2,106,005 \mathrm { hr }$