Which preposition to use with zero

of Occurrences 5%

'Small changes as previously mentioned had been noticed with regard to the Zero of Azimuth of the Transit Circle, and the Report states that 'In regard to the Azimuth of the Transit Circle, and the Azimuth of its Collimator, Mr Main has brought together the results of several years, and the following law appears to hold.

after Occurrences 2%

But when Marianne saw that on the paper was a number and several zeros after it, she struck her hands together from astonishment and fright, and cried: "Dear God, I have not earned that, this is riches!"

Which preposition to use with  zero