Alright, let's work through 3520 times 8615 step by step
3520 × 8615 = 8615 × (3520)
+ 8615 × 0 that results in 0
+ 8615 × 20 producing 172300
+ 8615 × 500 resulting in 4307500
+ 8615 × 3000 what gives us 25845000

= 30324800
