No problem, we've got 8030 and 1620 to multiply
8030 × 1620 = 1620 × (8030)
+ 1620 × 0 that equals 0
+ 1620 × 30 producing 48600
+ 1620 × 000 that equals 0
+ 1620 × 8000 yielding 12960000

= 13008600
