Alright, let's work through 1607 times 3778 step by step
1607 × 3778 = 3778 × (1607)
+ 3778 × 7 what gives us 26446
+ 3778 × 00 resulting in 0
+ 3778 × 600 that is equal 2266800
+ 3778 × 1000 resulting in 3778000

= 6071246
