Alright, let's work through 85667668 times 1665769 step by step
85667668 × 1665769 = 1665769 × (85667668)
+ 1665769 × 8 that equals 13326152
+ 1665769 × 60 what gives us 99946140
+ 1665769 × 600 what gives us 999461400
+ 1665769 × 7000 yielding 11660383000
+ 1665769 × 60000 that equals 99946140000
+ 1665769 × 600000 giving us 999461400000
+ 1665769 × 5000000 resulting in 8328845000000
+ 1665769 × 80000000 what gives us 133261520000000

= 142702545656692
