Alright, let's work through 7894 times 8521 step by step
7894 × 8521 = 8521 × (7894)
+ 8521 × 4 resulting in 34084
+ 8521 × 90 which equals 766890
+ 8521 × 800 that equals 6816800
+ 8521 × 7000 giving us 59647000

= 67264774
