Alright, let's work through 84202109 times 33393081 step by step
84202109 × 33393081 = 33393081 × (84202109)
+ 33393081 × 9 that results in 300537729
+ 33393081 × 00 giving us 0
+ 33393081 × 100 what gives us 3339308100
+ 33393081 × 2000 which equals 66786162000
+ 33393081 × 00000 which equals 0
+ 33393081 × 200000 what gives us 6678616200000
+ 33393081 × 4000000 that is equal 133572324000000
+ 33393081 × 80000000 yielding 2671446480000000

= 2811767846207829
