Alright, let's work through 40821500 times 42670971 step by step
40821500 × 42670971 = 42670971 × (40821500)
+ 42670971 × 0 that results in 0
+ 42670971 × 00 that is equal 0
+ 42670971 × 500 which equals 21335485500
+ 42670971 × 1000 producing 42670971000
+ 42670971 × 20000 producing 853419420000
+ 42670971 × 800000 producing 34136776800000
+ 42670971 × 0000000 that is equal 0
+ 42670971 × 40000000 yielding 1706838840000000

= 1741893042676500
