Alright, let's work through 85340499 times 30039043 step by step
85340499 × 30039043 = 30039043 × (85340499)
+ 30039043 × 9 giving us 270351387
+ 30039043 × 90 that results in 2703513870
+ 30039043 × 400 what gives us 12015617200
+ 30039043 × 0000 that equals 0
+ 30039043 × 40000 yielding 1201561720000
+ 30039043 × 300000 which equals 9011712900000
+ 30039043 × 5000000 that is equal 150195215000000
+ 30039043 × 80000000 what gives us 2403123440000000

= 2563546919102457
