Well, I can at least tell you how you would STOP time
Ok.
Lets say you walk to the local store (which is 2 miles away) in 1 hour.
Doing the equation, Speed = 2 miles (distance) / 1 hour (time)
We can assume that you walked at an average of 2 mph which got you somewhere in 2 hours.
Now.
Lets say, in this hypothetical statement, that you stop time and walk to the local store (which is 2 miles away) at a comfortable pace in the stopped time (time isn't going, you don't have to worry about it) and reach the store, and resume time. You just traveled in 0.
Doing the equation, Speed = 2 miles (distance) / 0 (time)
You walked at a constant infinite speed, as 0 will go into infinity trying to multiply into that 2.
As to how we're going to move at infinite MPH, I don't have a clue