No problem, we've got 18249450 and 21684983 to multiply
18249450 × 21684983 = 21684983 × (18249450)
+ 21684983 × 0 producing 0
+ 21684983 × 50 that equals 1084249150
+ 21684983 × 400 giving us 8673993200
+ 21684983 × 9000 that is equal 195164847000
+ 21684983 × 40000 yielding 867399320000
+ 21684983 × 200000 that equals 4336996600000
+ 21684983 × 8000000 what gives us 173479864000000
+ 21684983 × 10000000 resulting in 216849830000000

= 395739013009350
