Alright, let's work through 85280851 times 84918473 step by step
85280851 × 84918473 = 84918473 × (85280851)
+ 84918473 × 1 which equals 84918473
+ 84918473 × 50 resulting in 4245923650
+ 84918473 × 800 which equals 67934778400
+ 84918473 × 0000 resulting in 0
+ 84918473 × 80000 that equals 6793477840000
+ 84918473 × 200000 producing 16983694600000
+ 84918473 × 5000000 that equals 424592365000000
+ 84918473 × 80000000 giving us 6793477840000000

= 7241919643060523
