No problem, we've got 87547428 and 71133138 to multiply
87547428 × 71133138 = 71133138 × (87547428)
+ 71133138 × 8 that equals 569065104
+ 71133138 × 20 which equals 1422662760
+ 71133138 × 400 what gives us 28453255200
+ 71133138 × 7000 resulting in 497931966000
+ 71133138 × 40000 that is equal 2845325520000
+ 71133138 × 500000 resulting in 35566569000000
+ 71133138 × 7000000 that results in 497931966000000
+ 71133138 × 80000000 that is equal 5690651040000000

= 6227523277469064
