No problem, we've got 7663 and 7778 to multiply
7663 × 7778 = 7778 × (7663)
+ 7778 × 3 that equals 23334
+ 7778 × 60 what gives us 466680
+ 7778 × 600 resulting in 4666800
+ 7778 × 7000 resulting in 54446000

= 59602814
