No problem, we've got 87235469 and 52157575 to multiply
87235469 × 52157575 = 52157575 × (87235469)
+ 52157575 × 9 that equals 469418175
+ 52157575 × 60 resulting in 3129454500
+ 52157575 × 400 which equals 20863030000
+ 52157575 × 5000 that results in 260787875000
+ 52157575 × 30000 resulting in 1564727250000
+ 52157575 × 200000 that equals 10431515000000
+ 52157575 × 7000000 resulting in 365103025000000
+ 52157575 × 80000000 that equals 4172606000000000

= 4549990517027675
