No problem, we've got 7145422 and 55142401 to multiply
7145422 × 55142401 = 55142401 × (7145422)
+ 55142401 × 2 giving us 110284802
+ 55142401 × 20 that results in 1102848020
+ 55142401 × 400 yielding 22056960400
+ 55142401 × 5000 what gives us 275712005000
+ 55142401 × 40000 which equals 2205696040000
+ 55142401 × 100000 resulting in 5514240100000
+ 55142401 × 7000000 giving us 385996807000000

= 394015725238222
