Let's calculate 7977 x 2837
7977 × 2837 = 2837 × (7977)
+ 2837 × 7 which equals 19859
+ 2837 × 70 that is equal 198590
+ 2837 × 900 resulting in 2553300
+ 2837 × 7000 resulting in 19859000

= 22630749
