Alright, let's work through 3690 times 1667 step by step
3690 × 1667 = 1667 × (3690)
+ 1667 × 0 giving us 0
+ 1667 × 90 giving us 150030
+ 1667 × 600 that is equal 1000200
+ 1667 × 3000 that equals 5001000

= 6151230
