Alright, let's work through 78747937 times 53252018 step by step
78747937 × 53252018 = 53252018 × (78747937)
+ 53252018 × 7 giving us 372764126
+ 53252018 × 30 yielding 1597560540
+ 53252018 × 900 which equals 47926816200
+ 53252018 × 7000 producing 372764126000
+ 53252018 × 40000 that results in 2130080720000
+ 53252018 × 700000 that is equal 37276412600000
+ 53252018 × 8000000 that is equal 426016144000000
+ 53252018 × 70000000 that results in 3727641260000000

= 4193486558586866
