No problem, we've got 6458 and 8991 to multiply
6458 × 8991 = 8991 × (6458)
+ 8991 × 8 that equals 71928
+ 8991 × 50 which equals 449550
+ 8991 × 400 that equals 3596400
+ 8991 × 6000 giving us 53946000

= 58063878
