Alright, let's work through 6921896 times 31213656 step by step
6921896 × 31213656 = 31213656 × (6921896)
+ 31213656 × 6 producing 187281936
+ 31213656 × 90 giving us 2809229040
+ 31213656 × 800 that results in 24970924800
+ 31213656 × 1000 resulting in 31213656000
+ 31213656 × 20000 that equals 624273120000
+ 31213656 × 900000 yielding 28092290400000
+ 31213656 × 6000000 which equals 187281936000000

= 216057680611776
