findNumberOfSteps.scala

import scala.annotation.tailrec

def findNumberOfSteps(start: Int, target: Int, distance: Int): Int = {

  @tailrec
  def progressUntilTargetReached(numberOfSteps: Int, currentPosition: Int): Int = {
     if (currentPosition >= target) {
       numberOfSteps
     } else {
       progressUntilTargetReached(numberOfSteps + 1, currentPosition + distance)
     }
  }

  progressUntilTargetReached(0, start)
}