No problem, we've got 2142 and 4039 to multiply
2142 × 4039 = 4039 × (2142)
+ 4039 × 2 producing 8078
+ 4039 × 40 which equals 161560
+ 4039 × 100 that is equal 403900
+ 4039 × 2000 that is equal 8078000

= 8651538
