No problem, we've got 7942 and 9664 to multiply
7942 × 9664 = 9664 × (7942)
+ 9664 × 2 resulting in 19328
+ 9664 × 40 what gives us 386560
+ 9664 × 900 that results in 8697600
+ 9664 × 7000 that results in 67648000

= 76751488
