Alright, let's work through 4645 times 391 step by step
4645 × 391 = 391 × (4645)
+ 391 × 5 that results in 1955
+ 391 × 40 resulting in 15640
+ 391 × 600 giving us 234600
+ 391 × 4000 what gives us 1564000

= 1816195
