Alright, let's work through 5604 times 1138 step by step
5604 × 1138 = 1138 × (5604)
+ 1138 × 4 giving us 4552
+ 1138 × 00 producing 0
+ 1138 × 600 that equals 682800
+ 1138 × 5000 yielding 5690000

= 6377352
