Measure nightsky with TSL237

The code seems to work fine and for every 50 (+1) pulse it prints the time it took to gather those 50 pulses right? Is there any way to add a decimal or two to the frequencies (float?)

 count 51
 micros 934564
 freq 54

 count 51
 micros 3450896
 freq 14

 count 51
 micros 8804244
 freq 5

 count 51
 micros 2095280
 freq 24

 count 51
 micros 796124
 freq 64

 count 51
 micros 2395064
 freq 21

 count 51
 micros 975288
 freq 52

 count 51
 micros 13221620
 freq 3

 count 51
 micros 956156
 freq 53