How do I change gears on a high speed press with 108.5 steps

Formula: Step 108.5 = (N1/N2)*(N3/N4)*(3.14*80)/3. Here 80 is the diameter of the drum and 3 is the number of divisions.
Next step
108.5 = (N1/N2)*(N3/N4)*83.73 Next   Motor Iron Core Stamping Machine

Dividing 108.5 by 83.73 equals X. Then select the N1 gear divided by the N2 gear, any selection, for example, 60 ÷ 54, the N1 gear is 60. n2 gear is 54 is equal to 1.111, and then X divided by 1.111 is equal to Y. Then select the 3 gears divided by the 4 gears is equal to y. This is out, on a selection of gears is similar to the math of the test quotient.Motor Iron Core Stamping Machine

Multiply y by 1.111 and then by 83.73 to equal 108, and the result should be close to 108.5. The error of 0.5 is corrected by the positioning needle.Motor Iron Core Stamping Machine