Alright, let's work through 2203 times 1648 step by step
2203 × 1648 = 1648 × (2203)
+ 1648 × 3 producing 4944
+ 1648 × 00 producing 0
+ 1648 × 200 giving us 329600
+ 1648 × 2000 yielding 3296000

= 3630544
