Alright, let's work through 8102 times 310 step by step
8102 × 310 = 310 × (8102)
+ 310 × 2 giving us 620
+ 310 × 00 what gives us 0
+ 310 × 100 that equals 31000
+ 310 × 8000 giving us 2480000

= 2511620
