The prodect of y and 4

Step-by-step explanation:

The product of y and 4 is 4y

Step-by-step explanation:

GIven that , 

Dividend is greater than Divisor by 642.

Therfore , let,

                    Dividend = x + 642.

                    Divisor = x

                    Quotient = 8

                    Remainder = 19.

We know that, Dividend = Divisor × Quotient + Remainder.

Therefore, x+642 + X.8 + 19.

X + 642 = 8X + 19.

642 - 19 = 8X - X

7X = 623

X = 623/7

X = 89.

Therefore, Divisor = 89

                Dividend = X+642=731.