Let's calculate 8644 x 2902
8644 × 2902 = 2902 × (8644)
+ 2902 × 4 which equals 11608
+ 2902 × 40 that results in 116080
+ 2902 × 600 which equals 1741200
+ 2902 × 8000 that equals 23216000

= 25084888
