how do i find the recurring interval measurements for dividing 2.570 into 100

I'm assuming that you want each interval to be 2.57 units in length??

If so, the fraction evaluates to 100/2.57  ≈ 38.91... you will have about 38 intervals 

Assuming that we start at 0, the first interval ends at 2.57, the second interval ends at 2*2.57 = 5.14, the third at  3 *2.57  = 7.71, etc......

The last interval ends at  38*2.57  = 97.66