Alright, let's work through 1860 times 688 step by step
1860 × 688 = 688 × (1860)
+ 688 × 0 which equals 0
+ 688 × 60 resulting in 41280
+ 688 × 800 resulting in 550400
+ 688 × 1000 that equals 688000

= 1279680
