No problem, we've got 8422 and 8578 to multiply
8422 × 8578 = 8578 × (8422)
+ 8578 × 2 that results in 17156
+ 8578 × 20 that is equal 171560
+ 8578 × 400 yielding 3431200
+ 8578 × 8000 that results in 68624000

= 72243916
