No problem, we've got 8378 and 5139 to multiply
8378 × 5139 = 5139 × (8378)
+ 5139 × 8 that equals 41112
+ 5139 × 70 yielding 359730
+ 5139 × 300 giving us 1541700
+ 5139 × 8000 giving us 41112000

= 43054542
