No problem, we've got 6960 and 7961 to multiply
6960 × 7961 = 7961 × (6960)
+ 7961 × 0 what gives us 0
+ 7961 × 60 yielding 477660
+ 7961 × 900 giving us 7164900
+ 7961 × 6000 giving us 47766000

= 55408560
