Alright, let's work through 7811 times 8604 step by step
7811 × 8604 = 8604 × (7811)
+ 8604 × 1 that results in 8604
+ 8604 × 10 resulting in 86040
+ 8604 × 800 what gives us 6883200
+ 8604 × 7000 giving us 60228000

= 67205844
