Alright, let's work through 1507 times 3222 step by step
1507 × 3222 = 3222 × (1507)
+ 3222 × 7 yielding 22554
+ 3222 × 00 yielding 0
+ 3222 × 500 what gives us 1611000
+ 3222 × 1000 that is equal 3222000

= 4855554
