Alright, let's work through 7840 times 8753 step by step
7840 × 8753 = 8753 × (7840)
+ 8753 × 0 that equals 0
+ 8753 × 40 resulting in 350120
+ 8753 × 800 which equals 7002400
+ 8753 × 7000 which equals 61271000

= 68623520
