No problem, we've got 87746147 and 19342157 to multiply
87746147 × 19342157 = 19342157 × (87746147)
+ 19342157 × 7 what gives us 135395099
+ 19342157 × 40 what gives us 773686280
+ 19342157 × 100 which equals 1934215700
+ 19342157 × 6000 giving us 116052942000
+ 19342157 × 40000 that results in 773686280000
+ 19342157 × 700000 that results in 13539509900000
+ 19342157 × 7000000 that is equal 135395099000000
+ 19342157 × 80000000 that is equal 1547372560000000

= 1697199751419079
