Alright, let's work through 86126670 times 81262282 step by step
86126670 × 81262282 = 81262282 × (86126670)
+ 81262282 × 0 that is equal 0
+ 81262282 × 70 yielding 5688359740
+ 81262282 × 600 resulting in 48757369200
+ 81262282 × 6000 resulting in 487573692000
+ 81262282 × 20000 that equals 1625245640000
+ 81262282 × 100000 that is equal 8126228200000
+ 81262282 × 6000000 that is equal 487573692000000
+ 81262282 × 80000000 which equals 6500982560000000

= 6998849745260940
