No problem, we've got 4029 and 3021 to multiply
4029 × 3021 = 3021 × (4029)
+ 3021 × 9 what gives us 27189
+ 3021 × 20 that is equal 60420
+ 3021 × 000 yielding 0
+ 3021 × 4000 which equals 12084000

= 12171609
