Let's calculate 7988 x 7788
7988 × 7788 = 7788 × (7988)
+ 7788 × 8 that is equal 62304
+ 7788 × 80 that results in 623040
+ 7788 × 900 what gives us 7009200
+ 7788 × 7000 yielding 54516000

= 62210544
