Alright, let's work through 8407 times 8702 step by step
8407 × 8702 = 8702 × (8407)
+ 8702 × 7 that is equal 60914
+ 8702 × 00 resulting in 0
+ 8702 × 400 that is equal 3480800
+ 8702 × 8000 that results in 69616000

= 73157714
