Alright, let's work through 90610814 times 53485464 step by step
90610814 × 53485464 = 53485464 × (90610814)
+ 53485464 × 4 that results in 213941856
+ 53485464 × 10 that equals 534854640
+ 53485464 × 800 producing 42788371200
+ 53485464 × 0000 yielding 0
+ 53485464 × 10000 which equals 534854640000
+ 53485464 × 600000 producing 32091278400000
+ 53485464 × 0000000 producing 0
+ 53485464 × 90000000 producing 4813691760000000

= 4846361430207696
