Alright, let's work through 7700 times 309 step by step
7700 × 309 = 309 × (7700)
+ 309 × 0 which equals 0
+ 309 × 00 producing 0
+ 309 × 700 which equals 216300
+ 309 × 7000 what gives us 2163000

= 2379300
