No problem, we've got 9981 and 6490 to multiply
9981 × 6490 = 6490 × (9981)
+ 6490 × 1 giving us 6490
+ 6490 × 80 resulting in 519200
+ 6490 × 900 resulting in 5841000
+ 6490 × 9000 resulting in 58410000

= 64776690
