No problem, we've got 8440 and 9141 to multiply
8440 × 9141 = 9141 × (8440)
+ 9141 × 0 that is equal 0
+ 9141 × 40 giving us 365640
+ 9141 × 400 that results in 3656400
+ 9141 × 8000 what gives us 73128000

= 77150040
