Alright, let's work through 4621 times 7403 step by step
4621 × 7403 = 7403 × (4621)
+ 7403 × 1 giving us 7403
+ 7403 × 20 that equals 148060
+ 7403 × 600 giving us 4441800
+ 7403 × 4000 which equals 29612000

= 34209263
