Alright, let's work through 7815 times 7738 step by step
7815 × 7738 = 7738 × (7815)
+ 7738 × 5 which equals 38690
+ 7738 × 10 resulting in 77380
+ 7738 × 800 giving us 6190400
+ 7738 × 7000 giving us 54166000

= 60472470
