Alright, let's work through 61454912 times 64352088 step by step
61454912 × 64352088 = 64352088 × (61454912)
+ 64352088 × 2 giving us 128704176
+ 64352088 × 10 giving us 643520880
+ 64352088 × 900 giving us 57916879200
+ 64352088 × 4000 which equals 257408352000
+ 64352088 × 50000 that equals 3217604400000
+ 64352088 × 400000 producing 25740835200000
+ 64352088 × 1000000 producing 64352088000000
+ 64352088 × 60000000 which equals 3861125280000000

= 3954751905056256
