No problem, we've got 8240 and 8089 to multiply
8240 × 8089 = 8089 × (8240)
+ 8089 × 0 that is equal 0
+ 8089 × 40 giving us 323560
+ 8089 × 200 resulting in 1617800
+ 8089 × 8000 what gives us 64712000

= 66653360
