Alright, let's work through 5351 times 8403 step by step
5351 × 8403 = 8403 × (5351)
+ 8403 × 1 resulting in 8403
+ 8403 × 50 that equals 420150
+ 8403 × 300 giving us 2520900
+ 8403 × 5000 that equals 42015000

= 44964453
