Alright, let's work through 97085284 times 86206092 step by step
97085284 × 86206092 = 86206092 × (97085284)
+ 86206092 × 4 what gives us 344824368
+ 86206092 × 80 which equals 6896487360
+ 86206092 × 200 yielding 17241218400
+ 86206092 × 5000 producing 431030460000
+ 86206092 × 80000 that is equal 6896487360000
+ 86206092 × 000000 that results in 0
+ 86206092 × 7000000 that results in 603442644000000
+ 86206092 × 90000000 giving us 7758548280000000

= 8369342924350128
