Alright, let's work through 9826 times 7921 step by step
9826 × 7921 = 7921 × (9826)
+ 7921 × 6 yielding 47526
+ 7921 × 20 that is equal 158420
+ 7921 × 800 yielding 6336800
+ 7921 × 9000 what gives us 71289000

= 77831746
