Alright, let's work through 3577 times 1807 step by step
3577 × 1807 = 1807 × (3577)
+ 1807 × 7 that results in 12649
+ 1807 × 70 resulting in 126490
+ 1807 × 500 which equals 903500
+ 1807 × 3000 that results in 5421000

= 6463639
