No problem, we've got 8047 and 620 to multiply
8047 × 620 = 620 × (8047)
+ 620 × 7 that equals 4340
+ 620 × 40 what gives us 24800
+ 620 × 000 yielding 0
+ 620 × 8000 that results in 4960000

= 4989140
