From this module I have learned about Multiplication , Division and their effect in Flags .In multiplication I have learned how to multiply using MUL where multiplier is kept in source byte, multiplicand kept in AL and the result product kept in Ax register. Then in Division I have learned how to Divide using DIV where Divisor is kept in 8 bit register or memory, dividend is kept in AX, quotient in AL and the remainder in AH.