Alright, let's work through 1924 times 7087 step by step
1924 × 7087 = 7087 × (1924)
+ 7087 × 4 that equals 28348
+ 7087 × 20 that is equal 141740
+ 7087 × 900 giving us 6378300
+ 7087 × 1000 giving us 7087000

= 13635388
