Alright, let's work through 2401 times 7964 step by step
2401 × 7964 = 7964 × (2401)
+ 7964 × 1 that equals 7964
+ 7964 × 00 that is equal 0
+ 7964 × 400 giving us 3185600
+ 7964 × 2000 that results in 15928000

= 19121564
