No problem, we've got 6640 and 9946 to multiply
6640 × 9946 = 9946 × (6640)
+ 9946 × 0 which equals 0
+ 9946 × 40 that is equal 397840
+ 9946 × 600 resulting in 5967600
+ 9946 × 6000 yielding 59676000

= 66041440
