Alright, let's work through 20926497 times 74871618 step by step
20926497 × 74871618 = 74871618 × (20926497)
+ 74871618 × 7 what gives us 524101326
+ 74871618 × 90 that results in 6738445620
+ 74871618 × 400 what gives us 29948647200
+ 74871618 × 6000 that equals 449229708000
+ 74871618 × 20000 that equals 1497432360000
+ 74871618 × 900000 that is equal 67384456200000
+ 74871618 × 0000000 yielding 0
+ 74871618 × 20000000 which equals 1497432360000000

= 1566800689462146
