Alright, let's work through 21503864 times 8106734 step by step
21503864 × 8106734 = 8106734 × (21503864)
+ 8106734 × 4 giving us 32426936
+ 8106734 × 60 which equals 486404040
+ 8106734 × 800 that equals 6485387200
+ 8106734 × 3000 resulting in 24320202000
+ 8106734 × 00000 what gives us 0
+ 8106734 × 500000 which equals 4053367000000
+ 8106734 × 1000000 that results in 8106734000000
+ 8106734 × 20000000 that is equal 162134680000000

= 174326105420176
