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In this paper we consider the congruence equation $q_1 q_2 \equiv c \pmod q$with $a < q_1 \leq a + q^{1/2+\epsilon}$ and $b < q_2 \leq b +q^{1/2+\epsilon}$ and show that it has solution for almost all $a$ and $b$.Then we apply it to a question of Fujii and Kitaoka as well as generalize it tomore variables. At the end, we will present a new way to attack the abovecongruence equation question through higher moments.

An almost all result on $q_1 q_2 \equiv c \pmod q$