Alright, let's work through 71344049 times 53678054 step by step
71344049 × 53678054 = 53678054 × (71344049)
+ 53678054 × 9 that results in 483102486
+ 53678054 × 40 which equals 2147122160
+ 53678054 × 000 that equals 0
+ 53678054 × 4000 yielding 214712216000
+ 53678054 × 40000 yielding 2147122160000
+ 53678054 × 300000 which equals 16103416200000
+ 53678054 × 1000000 that results in 53678054000000
+ 53678054 × 70000000 that is equal 3757463780000000

= 3829609714800646
