No problem, we've got 3960 and 2102 to multiply
3960 × 2102 = 2102 × (3960)
+ 2102 × 0 resulting in 0
+ 2102 × 60 yielding 126120
+ 2102 × 900 that equals 1891800
+ 2102 × 3000 producing 6306000

= 8323920
