No problem, we've got 40401524 and 76973871 to multiply
40401524 × 76973871 = 76973871 × (40401524)
+ 76973871 × 4 yielding 307895484
+ 76973871 × 20 giving us 1539477420
+ 76973871 × 500 giving us 38486935500
+ 76973871 × 1000 what gives us 76973871000
+ 76973871 × 00000 yielding 0
+ 76973871 × 400000 that results in 30789548400000
+ 76973871 × 0000000 giving us 0
+ 76973871 × 40000000 giving us 3078954840000000

= 3109861696579404
