No problem, we've got 4169 and 2063 to multiply
4169 × 2063 = 2063 × (4169)
+ 2063 × 9 resulting in 18567
+ 2063 × 60 what gives us 123780
+ 2063 × 100 that equals 206300
+ 2063 × 4000 yielding 8252000

= 8600647
