Problem: what is the thousandths digit in the decimal equivalent of 64 / 5000 ?
Rationale: "64 / 5000 = 64 / ( 5 * 10 ^ 3 ) = ( 64 / 5 ) * 10 ^ - 3 = 12.8 * 10 ^ - 3 = . 0128 thousandths digit = 2 answer a"
annotated_formula: floor(multiply(const_100, divide(64, 5000)))