Alright, let's work through 6461 times 1028 step by step
6461 × 1028 = 1028 × (6461)
+ 1028 × 1 which equals 1028
+ 1028 × 60 yielding 61680
+ 1028 × 400 yielding 411200
+ 1028 × 6000 which equals 6168000

= 6641908
