No problem, we've got 8240 and 2599 to multiply
8240 × 2599 = 2599 × (8240)
+ 2599 × 0 which equals 0
+ 2599 × 40 producing 103960
+ 2599 × 200 producing 519800
+ 2599 × 8000 that is equal 20792000

= 21415760
