No problem, we've got 31470172 and 13349535 to multiply
31470172 × 13349535 = 13349535 × (31470172)
+ 13349535 × 2 yielding 26699070
+ 13349535 × 70 that equals 934467450
+ 13349535 × 100 yielding 1334953500
+ 13349535 × 0000 which equals 0
+ 13349535 × 70000 that equals 934467450000
+ 13349535 × 400000 yielding 5339814000000
+ 13349535 × 1000000 that equals 13349535000000
+ 13349535 × 30000000 giving us 400486050000000

= 420112162570020
