Alright, let's work through 71210085 times 47804913 step by step
71210085 × 47804913 = 47804913 × (71210085)
+ 47804913 × 5 giving us 239024565
+ 47804913 × 80 that is equal 3824393040
+ 47804913 × 000 resulting in 0
+ 47804913 × 0000 producing 0
+ 47804913 × 10000 producing 478049130000
+ 47804913 × 200000 what gives us 9560982600000
+ 47804913 × 1000000 giving us 47804913000000
+ 47804913 × 70000000 that is equal 3346343910000000

= 3404191918147605
