No problem, we've got 4951 and 4161 to multiply
4951 × 4161 = 4161 × (4951)
+ 4161 × 1 that equals 4161
+ 4161 × 50 what gives us 208050
+ 4161 × 900 yielding 3744900
+ 4161 × 4000 what gives us 16644000

= 20601111
