Alright, let's work through 40973875 times 20189941 step by step
40973875 × 20189941 = 20189941 × (40973875)
+ 20189941 × 5 what gives us 100949705
+ 20189941 × 70 which equals 1413295870
+ 20189941 × 800 giving us 16151952800
+ 20189941 × 3000 giving us 60569823000
+ 20189941 × 70000 which equals 1413295870000
+ 20189941 × 900000 that equals 18170946900000
+ 20189941 × 0000000 yielding 0
+ 20189941 × 40000000 producing 807597640000000

= 827260118791375
