Alright, let's work through 7984 times 5428 step by step
7984 × 5428 = 5428 × (7984)
+ 5428 × 4 giving us 21712
+ 5428 × 80 that is equal 434240
+ 5428 × 900 that is equal 4885200
+ 5428 × 7000 that equals 37996000

= 43337152
