Alright, let's work through 8355 times 9390 step by step
8355 × 9390 = 9390 × (8355)
+ 9390 × 5 that equals 46950
+ 9390 × 50 resulting in 469500
+ 9390 × 300 giving us 2817000
+ 9390 × 8000 that is equal 75120000

= 78453450
