No problem, we've got 8520 and 5641 to multiply
8520 × 5641 = 5641 × (8520)
+ 5641 × 0 that results in 0
+ 5641 × 20 which equals 112820
+ 5641 × 500 yielding 2820500
+ 5641 × 8000 that equals 45128000

= 48061320
