Alright, let's work through 7621 times 5747 step by step
7621 × 5747 = 5747 × (7621)
+ 5747 × 1 giving us 5747
+ 5747 × 20 that equals 114940
+ 5747 × 600 giving us 3448200
+ 5747 × 7000 producing 40229000

= 43797887
