No problem, we've got 6413 and 9957 to multiply
6413 × 9957 = 9957 × (6413)
+ 9957 × 3 that equals 29871
+ 9957 × 10 what gives us 99570
+ 9957 × 400 resulting in 3982800
+ 9957 × 6000 that results in 59742000

= 63854241
