Alright, let's work through 85429480 times 54901126 step by step
85429480 × 54901126 = 54901126 × (85429480)
+ 54901126 × 0 producing 0
+ 54901126 × 80 producing 4392090080
+ 54901126 × 400 that results in 21960450400
+ 54901126 × 9000 that is equal 494110134000
+ 54901126 × 20000 that is equal 1098022520000
+ 54901126 × 400000 what gives us 21960450400000
+ 54901126 × 5000000 yielding 274505630000000
+ 54901126 × 80000000 giving us 4392090080000000

= 4690174645594480
