No problem, we've got 8669 and 5981 to multiply
8669 × 5981 = 5981 × (8669)
+ 5981 × 9 which equals 53829
+ 5981 × 60 what gives us 358860
+ 5981 × 600 what gives us 3588600
+ 5981 × 8000 giving us 47848000

= 51849289
