Alright, let's work through 7770 times 6705 step by step
7770 × 6705 = 6705 × (7770)
+ 6705 × 0 which equals 0
+ 6705 × 70 producing 469350
+ 6705 × 700 which equals 4693500
+ 6705 × 7000 giving us 46935000

= 52097850
