No problem, we've got 20030374 and 80742382 to multiply
20030374 × 80742382 = 80742382 × (20030374)
+ 80742382 × 4 what gives us 322969528
+ 80742382 × 70 resulting in 5651966740
+ 80742382 × 300 that equals 24222714600
+ 80742382 × 0000 that results in 0
+ 80742382 × 30000 resulting in 2422271460000
+ 80742382 × 000000 that equals 0
+ 80742382 × 0000000 that results in 0
+ 80742382 × 20000000 yielding 1614847640000000

= 1617300109110868
