Alright, let's work through 70451998 times 73439823 step by step
70451998 × 73439823 = 73439823 × (70451998)
+ 73439823 × 8 giving us 587518584
+ 73439823 × 90 resulting in 6609584070
+ 73439823 × 900 resulting in 66095840700
+ 73439823 × 1000 that is equal 73439823000
+ 73439823 × 50000 producing 3671991150000
+ 73439823 × 400000 which equals 29375929200000
+ 73439823 × 0000000 producing 0
+ 73439823 × 70000000 what gives us 5140787610000000

= 5173982263116354
