Combination Calculator I Need The Formula Of How To Calculate Lottery Probabilities And Combinations I Cant Use Calculator?

I need the formula of how to calculate lottery probabilities and combinations i cant use calculator? - combination calculator

1.i want the rate of 6 numbers from 37 to number about 1 bonus equal to 8 digits
2.How phone numbers to 10 digits are calculated in 10 digits 0-9, without code, just the number I have all the combinations